US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Amphastar Pharmaceuticals

19.72

-0.7200-3.52%

Volume:12.33K

Turnover:245.90K

Market Cap:894.70M

PE:9.71

High:20.08

Open:20.08

Low:19.72

Close:20.44

52wk High:31.26

52wk Low:19.54

Shares:45.37M

Float Shares:34.22M

Volume Ratio:0.38

T/O Rate:0.04%

Dividend:- -

Dividend Rate:- -

EPS(TTM):2.03

EPS(LYR):2.03

ROE:12.90%

ROA:6.37%

PB:1.13

PE(LYR):9.71

Loading ...

Overview Company News Filings

Employee Stock Ownership

S-8 - Securities to be offered to employees in employee benefit plans

Annual Report

10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K/A [Amend] - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Current report, items 2.02 and 9.01

Major Issues Report

[Amend] Current report, items 5.02 and 9.01

Major Issues Report

8-K - Current report

Employee Stock Ownership

Securities to be offered to employees in employee benefit plans

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/AMPH/filings?page=8"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"AMPH","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"AMPH\",,,,,undefined,":{"symbol":"AMPH","market":"US","secType":"STK","nameCN":"Amphastar Pharmaceuticals","latestPrice":19.72,"timestamp":1772808080147,"preClose":20.44,"halted":0,"volume":12326,"delay":0,"changeRate":-0.03522504892367918,"floatShares":34222300,"shares":45370171,"eps":2.03,"marketStatus":"Trading","change":-0.72,"latestTime":"03-06 09:41:24 EST","open":20.08,"high":20.08,"low":19.72,"amount":245904.18071400002,"amplitude":0.017613,"askPrice":19.78,"askSize":135,"bidPrice":19.65,"bidSize":14,"shortable":3,"etf":0,"ttmEps":2.03,"tradingStatus":2,"nextMarketStatus":{"tag":"Post-Mkt","tradingStatus":3,"beginTime":1772830800000},"marketStatusCode":2,"adr":0,"adrRate":0,"listingDate":1403668800000,"exchange":"NASDAQ","adjPreClose":20.44,"preHourTrading":{"tag":"盘前","latestPrice":20.58,"preClose":20.44,"latestTime":"08:34 EST","volume":1,"amount":20.58,"timestamp":1772804092710,"change":0.14,"changeRate":0.006849,"amplitude":0},"postHourTrading":{"tag":"盘后","latestPrice":20.8,"preClose":20.44,"latestTime":"18:26 EST","volume":68865,"amount":1407745.9381,"timestamp":1772753173591,"change":0.36,"changeRate":0.017613,"amplitude":0.017613},"volumeRatio":0.378687,"impliedVol":0.5618,"impliedVolPercentile":0.7131},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"AMPH\",,,,,undefined,":{"symbol":"AMPH","floatShares":34222300,"roa":"6.37%","roe":"12.90%","lyrEps":2.03,"volumeRatio":0.378687,"shares":45370171,"dividePrice":0,"high":20.08,"amplitude":0.017613,"preClose":20.44,"low":19.72,"week52Low":19.54,"pbRate":"1.13","psRate":"1.24","week52High":31.2641,"institutionHeld":0,"latestPrice":19.72,"committee":-0.812081,"eps":2.03,"divideRate":0,"volume":12326,"delay":0,"ttmEps":2.03,"open":20.08,"prevYearClose":26.78,"prevWeekClose":20.23,"prevMonthClose":20.23,"prevQuarterClose":26.78,"fiveDayClose":20.23,"twentyDayClose":28.63,"sixtyDayClose":26.01},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/AMPH\",params:#limit:5,,,undefined,":[{"market":"US","date":"2026-02-26","symbol":"AMPH","fiscalQuarterEnding":"2025/12","expectedEps":0.89,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1772082000000,"reportTimeType":"post","actualEps":0.61},{"market":"US","date":"2025-11-06","symbol":"AMPH","fiscalQuarterEnding":"2025/09","expectedEps":0.73,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1762405200000,"reportTimeType":"post","actualEps":0.83},{"market":"US","date":"2025-08-07","symbol":"AMPH","fiscalQuarterEnding":"2025/06","expectedEps":0.64,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1754539200000,"reportTimeType":"post","actualEps":0.75},{"market":"US","date":"2025-05-07","symbol":"AMPH","fiscalQuarterEnding":"2025/03","expectedEps":0.58,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1746590400000,"reportTimeType":"post","actualEps":0.61},{"market":"US","date":"2025-02-27","symbol":"AMPH","fiscalQuarterEnding":"2024/12","expectedEps":0.8,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1740632400000,"reportTimeType":"post","actualEps":0.83}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"AMPH\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"AMPH\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.1429,"buy":0.2857,"hold":0.5714,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":0.2857,"analysts":7,"updateTime":1772254800000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/AMPH\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"AMPH","date":"2026-03-05","current":10.068966,"percent":0.1131,"low":6.863154,"twenty":11.084319,"median":18.68772,"eighty":30.295751,"high":647.427472,"avg":58.540335,"sd":126.321442,"marketCap":905588613},"quantilePoints":[{"date":"2021-03-12","current":138.297415,"twenty":-90.233392,"median":16.898124,"eighty":234.343086,"marketCap":919677807},{"date":"2021-03-19","current":610.914591,"twenty":-90.233392,"median":17.01585,"eighty":235.864855,"marketCap":857113171},{"date":"2021-03-26","current":609.900344,"twenty":-90.233309,"median":17.074402,"eighty":236.547935,"marketCap":855690183},{"date":"2021-04-01","current":611.590756,"twenty":-90.233309,"median":17.175966,"eighty":237.509987,"marketCap":858061830},{"date":"2021-04-09","current":604.82911,"twenty":-90.043213,"median":17.242245,"eighty":238.356054,"marketCap":848575242},{"date":"2021-04-16","current":588.052031,"twenty":-89.178747,"median":17.335465,"eighty":239.014107,"marketCap":825037000},{"date":"2021-04-23","current":588.73186,"twenty":-88.081932,"median":17.387138,"eighty":239.766167,"marketCap":825990800},{"date":"2021-04-30","current":591.451176,"twenty":-86.410677,"median":17.43179,"eighty":240.42422,"marketCap":829806000},{"date":"2021-05-07","current":356.644632,"twenty":-81.83952,"median":17.46864,"eighty":241.818573,"marketCap":889828356},{"date":"2021-05-14","current":381.273731,"twenty":-80.450711,"median":17.513919,"eighty":242.466897,"marketCap":951277959},{"date":"2021-05-21","current":376.50065,"twenty":-80.450711,"median":17.539725,"eighty":243.833944,"marketCap":939369121},{"date":"2021-05-28","current":361.22679,"twenty":-80.450711,"median":17.613533,"eighty":244.748565,"marketCap":901260840},{"date":"2021-06-04","current":358.744788,"twenty":-80.450711,"median":17.646006,"eighty":245.615937,"marketCap":895068245},{"date":"2021-06-11","current":380.319115,"twenty":-80.450711,"median":17.743985,"eighty":246.387649,"marketCap":948896191},{"date":"2021-06-18","current":385.092196,"twenty":-80.450711,"median":17.779509,"eighty":247.418493,"marketCap":960805029},{"date":"2021-06-25","current":399.41144,"twenty":-80.450711,"median":17.788816,"eighty":249.249629,"marketCap":996531542},{"date":"2021-07-02","current":393.492819,"twenty":-80.450711,"median":17.832794,"eighty":254.441124,"marketCap":981764584},{"date":"2021-07-09","current":382.99204,"twenty":-80.450711,"median":17.90485,"eighty":356.415524,"marketCap":955565141},{"date":"2021-07-16","current":382.99204,"twenty":-80.450711,"median":18.001531,"eighty":362.601437,"marketCap":955565141},{"date":"2021-07-23","current":398.2659,"twenty":-76.647448,"median":18.052123,"eighty":369.551043,"marketCap":993673421},{"date":"2021-07-30","current":399.98421,"twenty":-76.549823,"median":18.084434,"eighty":375.622403,"marketCap":997960603},{"date":"2021-08-06","current":387.765121,"twenty":-76.549823,"median":18.138769,"eighty":376.806127,"marketCap":967473978},{"date":"2021-08-13","current":90.053634,"twenty":-76.549823,"median":18.235099,"eighty":376.806127,"marketCap":941420692},{"date":"2021-08-20","current":86.791487,"twenty":-76.549823,"median":18.374527,"eighty":376.806127,"marketCap":907318208},{"date":"2021-08-27","current":88.675262,"twenty":-76.549823,"median":18.422537,"eighty":376.806127,"marketCap":927011192},{"date":"2021-09-03","current":88.537425,"twenty":-76.549823,"median":18.609976,"eighty":376.806127,"marketCap":925570242},{"date":"2021-09-10","current":81.92124,"twenty":-76.549823,"median":18.717084,"eighty":376.806127,"marketCap":856404640},{"date":"2021-09-17","current":84.402309,"twenty":-76.549823,"median":18.925141,"eighty":376.806127,"marketCap":882341741},{"date":"2021-09-24","current":85.964464,"twenty":-76.549823,"median":19.083035,"eighty":376.806127,"marketCap":898672508},{"date":"2021-10-01","current":88.904991,"twenty":-76.549823,"median":19.207994,"eighty":376.806127,"marketCap":929412775},{"date":"2021-10-08","current":89.410394,"twenty":-76.549823,"median":19.404359,"eighty":376.806127,"marketCap":934696259},{"date":"2021-10-15","current":87.802293,"twenty":-76.549823,"median":19.52016,"eighty":376.806127,"marketCap":917885175},{"date":"2021-10-22","current":88.169859,"twenty":-76.549823,"median":19.733301,"eighty":376.806127,"marketCap":921727708},{"date":"2021-10-29","current":85.826627,"twenty":-76.549823,"median":19.946442,"eighty":376.806127,"marketCap":897231558},{"date":"2021-11-05","current":92.259029,"twenty":-76.549823,"median":39.243007,"eighty":376.806127,"marketCap":964475893},{"date":"2021-11-12","current":28.245622,"twenty":-76.549823,"median":39.243007,"eighty":376.806127,"marketCap":1019186788},{"date":"2021-11-19","current":27.198015,"twenty":-75.008647,"median":39.243007,"eighty":376.806127,"marketCap":981385963},{"date":"2021-11-26","current":26.402363,"twenty":-75.008647,"median":39.243007,"eighty":376.806127,"marketCap":952676476},{"date":"2021-12-03","current":27.065406,"twenty":-75.008647,"median":39.243007,"eighty":376.806127,"marketCap":976601049},{"date":"2021-12-10","current":28.497579,"twenty":-74.600057,"median":39.243007,"eighty":376.806127,"marketCap":1028278126},{"date":"2021-12-17","current":28.948448,"twenty":-73.596501,"median":39.243007,"eighty":376.806127,"marketCap":1044546835},{"date":"2021-12-23","current":29.956273,"twenty":-70.987255,"median":39.243007,"eighty":376.806127,"marketCap":1080912185},{"date":"2021-12-31","current":30.884533,"twenty":-68.012429,"median":39.243007,"eighty":376.806127,"marketCap":1114406587},{"date":"2022-01-07","current":33.218443,"twenty":-66.098503,"median":36.230725,"eighty":376.653389,"marketCap":1198621082},{"date":"2022-01-14","current":33.64279,"twenty":-64.801049,"median":36.747898,"eighty":376.653389,"marketCap":1213932808},{"date":"2022-01-21","current":32.820617,"twenty":-64.801049,"median":36.747898,"eighty":376.653389,"marketCap":1184266338},{"date":"2022-01-28","current":34.557789,"twenty":-64.801049,"median":36.900398,"eighty":376.653389,"marketCap":1246948718},{"date":"2022-02-04","current":33.205182,"twenty":-64.801049,"median":36.900398,"eighty":376.653389,"marketCap":1198142590},{"date":"2022-02-11","current":35.989962,"twenty":-64.801049,"median":37.616484,"eighty":376.653389,"marketCap":1298625795},{"date":"2022-02-18","current":34.756702,"twenty":-55.797717,"median":37.616484,"eighty":376.653389,"marketCap":1254126090},{"date":"2022-02-25","current":38.151481,"twenty":-55.797717,"median":38.697244,"eighty":376.653389,"marketCap":1376619901},{"date":"2022-03-04","current":37.965829,"twenty":-54.740298,"median":38.697244,"eighty":376.653389,"marketCap":1369921021},{"date":"2022-03-11","current":26.586346,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1651437469},{"date":"2022-03-18","current":26.524337,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1647585720},{"date":"2022-03-25","current":28.245086,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1754471760},{"date":"2022-04-01","current":28.996945,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1801174219},{"date":"2022-04-08","current":31.903615,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1981724963},{"date":"2022-04-14","current":32.642785,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":2027639222},{"date":"2022-04-22","current":29.373791,"twenty":-54.740298,"median":39.563595,"eighty":376.653389,"marketCap":1824582430},{"date":"2022-04-29","current":27.872883,"twenty":-54.425986,"median":39.563595,"eighty":376.653389,"marketCap":1731352027},{"date":"2022-05-06","current":25.704032,"twenty":-52.761561,"median":39.563595,"eighty":376.653389,"marketCap":1596631655},{"date":"2022-05-13","current":21.218337,"twenty":12.05206,"median":38.697244,"eighty":375.92788,"marketCap":1725644884},{"date":"2022-05-20","current":20.233671,"twenty":12.05206,"median":36.646375,"eighty":371.307537,"marketCap":1645564024},{"date":"2022-05-27","current":23.337769,"twenty":12.05206,"median":35.161158,"eighty":364.281562,"marketCap":1898014053},{"date":"2022-06-03","current":22.677322,"twenty":12.05206,"median":34.796484,"eighty":360.15762,"marketCap":1844301281},{"date":"2022-06-10","current":18.024178,"twenty":12.05206,"median":34.524637,"eighty":274.790364,"marketCap":1465870385},{"date":"2022-06-17","current":18.924787,"twenty":12.05206,"median":33.62953,"eighty":249.661143,"marketCap":1539115075},{"date":"2022-06-24","current":19.080892,"twenty":12.029385,"median":33.218443,"eighty":248.262277,"marketCap":1551810821},{"date":"2022-07-01","current":21.224341,"twenty":12.029385,"median":32.820617,"eighty":246.784546,"marketCap":1726133182},{"date":"2022-07-08","current":21.680649,"twenty":12.029385,"median":32.661487,"eighty":246.110634,"marketCap":1763243825},{"date":"2022-07-15","current":22.209006,"twenty":12.029385,"median":31.903615,"eighty":245.264141,"marketCap":1806214043},{"date":"2022-07-22","current":21.590588,"twenty":12.029385,"median":30.68562,"eighty":244.267164,"marketCap":1755919356},{"date":"2022-07-29","current":22.449168,"twenty":12.029385,"median":30.446924,"eighty":243.102325,"marketCap":1825745960},{"date":"2022-08-05","current":22.070913,"twenty":12.029385,"median":30.198898,"eighty":242.211853,"marketCap":1794983190},{"date":"2022-08-12","current":17.048849,"twenty":12.029385,"median":29.425838,"eighty":241.818573,"marketCap":1549859738},{"date":"2022-08-19","current":18.202693,"twenty":12.029385,"median":28.980884,"eighty":241.818573,"marketCap":1654752206},{"date":"2022-08-26","current":16.71995,"twenty":12.029385,"median":28.497579,"eighty":241.818573,"marketCap":1519960483},{"date":"2022-09-02","current":15.587673,"twenty":12.029385,"median":28.252837,"eighty":241.818573,"marketCap":1417028622},{"date":"2022-09-09","current":15.188681,"twenty":12.029385,"median":28.219101,"eighty":241.818573,"marketCap":1380757395},{"date":"2022-09-16","current":15.760211,"twenty":12.029385,"median":28.046709,"eighty":241.818573,"marketCap":1432713477},{"date":"2022-09-23","current":14.859781,"twenty":12.029385,"median":27.826525,"eighty":241.818573,"marketCap":1350858140},{"date":"2022-09-30","current":15.150938,"twenty":12.029385,"median":27.725761,"eighty":241.818573,"marketCap":1377326333},{"date":"2022-10-07","current":15.657767,"twenty":12.029385,"median":27.519266,"eighty":241.818573,"marketCap":1423400594},{"date":"2022-10-14","current":15.382785,"twenty":12.029385,"median":26.981653,"eighty":241.818573,"marketCap":1398402857},{"date":"2022-10-21","current":16.531237,"twenty":12.029385,"median":26.586346,"eighty":241.818573,"marketCap":1502805173},{"date":"2022-10-28","current":16.703774,"twenty":12.029385,"median":26.402363,"eighty":241.818573,"marketCap":1518490028},{"date":"2022-11-04","current":16.045976,"twenty":12.029385,"median":24.862799,"eighty":241.818573,"marketCap":1458691518},{"date":"2022-11-11","current":17.715949,"twenty":12.029385,"median":22.677322,"eighty":241.818573,"marketCap":1368255875},{"date":"2022-11-18","current":17.772269,"twenty":12.029385,"median":22.389128,"eighty":241.818573,"marketCap":1372605682},{"date":"2022-11-25","current":18.260381,"twenty":12.029385,"median":22.287059,"eighty":241.818573,"marketCap":1410304007},{"date":"2022-12-02","current":18.904939,"twenty":12.029385,"median":22.070913,"eighty":241.818573,"marketCap":1460085129},{"date":"2022-12-09","current":17.759754,"twenty":12.029385,"median":21.860771,"eighty":241.818573,"marketCap":1371639058},{"date":"2022-12-16","current":17.947489,"twenty":12.029385,"median":21.572576,"eighty":241.818573,"marketCap":1386138414},{"date":"2022-12-23","current":17.941231,"twenty":12.029385,"median":21.236349,"eighty":241.818573,"marketCap":1385655102},{"date":"2022-12-30","current":17.534471,"twenty":12.029385,"median":20.894118,"eighty":241.818573,"marketCap":1354239831},{"date":"2023-01-06","current":18.053872,"twenty":12.029385,"median":20.581907,"eighty":240.852918,"marketCap":1394354716},{"date":"2023-01-13","current":18.122709,"twenty":12.029385,"median":20.344516,"eighty":239.842385,"marketCap":1399671146},{"date":"2023-01-20","current":18.128966,"twenty":12.029385,"median":20.136262,"eighty":239.413639,"marketCap":1400154458},{"date":"2023-01-27","current":19.130221,"twenty":12.029385,"median":19.850641,"eighty":238.591073,"marketCap":1477484356},{"date":"2023-02-03","current":19.530723,"twenty":12.029385,"median":19.733301,"eighty":238.210327,"marketCap":1508416315},{"date":"2023-02-10","current":19.881162,"twenty":12.029385,"median":19.591797,"eighty":236.682585,"marketCap":1535481779},{"date":"2023-02-17","current":20.269148,"twenty":12.029385,"median":19.591797,"eighty":236.206136,"marketCap":1565447114},{"date":"2023-02-24","current":20.363016,"twenty":12.029385,"median":19.591797,"eighty":234.851302,"marketCap":1572696792},{"date":"2023-03-03","current":18.925811,"twenty":12.029385,"median":19.52016,"eighty":233.655679,"marketCap":1729554170},{"date":"2023-03-10","current":18.726647,"twenty":12.029385,"median":19.466875,"eighty":230.482924,"marketCap":1711353378},{"date":"2023-03-17","current":19.020152,"twenty":12.029385,"median":19.404359,"eighty":228.884797,"marketCap":1738175597},{"date":"2023-03-24","current":19.69102,"twenty":12.029385,"median":19.381792,"eighty":221.751977,"marketCap":1799483527},{"date":"2023-03-31","current":19.654332,"twenty":12.05206,"median":19.384149,"eighty":217.556892,"marketCap":1796130750},{"date":"2023-04-06","current":20.409058,"twenty":12.006709,"median":19.370761,"eighty":185.844631,"marketCap":1865102170},{"date":"2023-04-14","current":21.944716,"twenty":11.984034,"median":19.35973,"eighty":141.740563,"marketCap":2005439853},{"date":"2023-04-21","current":22.697507,"twenty":11.984034,"median":19.35973,"eighty":139.50466,"marketCap":2074234338},{"date":"2023-04-28","current":19.185299,"twenty":11.984034,"median":19.355586,"eighty":138.197406,"marketCap":1753267779},{"date":"2023-05-05","current":19.280224,"twenty":11.984034,"median":19.330472,"eighty":137.068739,"marketCap":1761942551},{"date":"2023-05-12","current":21.560582,"twenty":12.394084,"median":19.330472,"eighty":136.697279,"marketCap":2008691617},{"date":"2023-05-19","current":22.715977,"twenty":13.217273,"median":19.381792,"eighty":136.697279,"marketCap":2116334001},{"date":"2023-05-26","current":22.82479,"twenty":13.730929,"median":19.466838,"eighty":136.697279,"marketCap":2126471550},{"date":"2023-06-02","current":23.38958,"twenty":13.940486,"median":19.491856,"eighty":136.697279,"marketCap":2179090255},{"date":"2023-06-09","current":23.778198,"twenty":14.230285,"median":19.52016,"eighty":136.697279,"marketCap":2215295787},{"date":"2023-06-16","current":27.063309,"twenty":14.816943,"median":19.636426,"eighty":136.697279,"marketCap":2521353213},{"date":"2023-06-23","current":30.249971,"twenty":15.080845,"median":19.67023,"eighty":136.725853,"marketCap":2818238571},{"date":"2023-06-30","current":28.970125,"twenty":15.14986,"median":19.734608,"eighty":136.725853,"marketCap":2699001688},{"date":"2023-07-07","current":29.628184,"twenty":15.23505,"median":19.806013,"eighty":136.725853,"marketCap":2760309721},{"date":"2023-07-14","current":28.643686,"twenty":15.309457,"median":19.937482,"eighty":136.725853,"marketCap":2668589041},{"date":"2023-07-21","current":32.773393,"twenty":15.387099,"median":20.047005,"eighty":136.725853,"marketCap":3053333156},{"date":"2023-07-28","current":31.40546,"twenty":15.486964,"median":20.189816,"eighty":136.725853,"marketCap":2925889685},{"date":"2023-08-04","current":32.685306,"twenty":15.592806,"median":20.269148,"eighty":136.725853,"marketCap":3045126569},{"date":"2023-08-11","current":25.591646,"twenty":15.644851,"median":20.375531,"eighty":136.725853,"marketCap":2608889146},{"date":"2023-08-18","current":25.404741,"twenty":15.689023,"median":20.503854,"eighty":136.725853,"marketCap":2589835462},{"date":"2023-08-25","current":25.65874,"twenty":15.796773,"median":20.810061,"eighty":136.725853,"marketCap":2615728931},{"date":"2023-09-01","current":25.548514,"twenty":15.910645,"median":21.064202,"eighty":136.725853,"marketCap":2604492142},{"date":"2023-09-08","current":24.556478,"twenty":15.967324,"median":21.236349,"eighty":136.725853,"marketCap":2503361046},{"date":"2023-09-15","current":22.558029,"twenty":16.039533,"median":21.506531,"eighty":136.725853,"marketCap":2299633186},{"date":"2023-09-22","current":21.882295,"twenty":16.192431,"median":21.590588,"eighty":136.725853,"marketCap":2230746787},{"date":"2023-09-29","current":22.668256,"twenty":16.331231,"median":21.810408,"eighty":136.725853,"marketCap":2310869974},{"date":"2023-10-06","current":22.318407,"twenty":16.396022,"median":21.920634,"eighty":136.725853,"marketCap":2275205385},{"date":"2023-10-13","current":22.121917,"twenty":16.463363,"median":21.99286,"eighty":136.725853,"marketCap":2255174588},{"date":"2023-10-20","current":21.484522,"twenty":16.535196,"median":22.040445,"eighty":136.725853,"marketCap":2190196637},{"date":"2023-10-27","current":21.537239,"twenty":16.652014,"median":22.055652,"eighty":136.725853,"marketCap":2195570753},{"date":"2023-11-03","current":21.781654,"twenty":16.689873,"median":22.055652,"eighty":136.725853,"marketCap":2220487110},{"date":"2023-11-10","current":18.558717,"twenty":16.726276,"median":22.096415,"eighty":136.725853,"marketCap":2510827410},{"date":"2023-11-17","current":19.890157,"twenty":16.812659,"median":22.096415,"eighty":136.725853,"marketCap":2690959275},{"date":"2023-11-24","current":20.138032,"twenty":16.889301,"median":22.096415,"eighty":136.725853,"marketCap":2724494463},{"date":"2023-12-01","current":19.943273,"twenty":16.992666,"median":22.096415,"eighty":136.725853,"marketCap":2698145387},{"date":"2023-12-08","current":20.215935,"twenty":17.033693,"median":22.070913,"eighty":136.725853,"marketCap":2735034093},{"date":"2023-12-15","current":20.594829,"twenty":17.113652,"median":22.070913,"eighty":136.725853,"marketCap":2786295023},{"date":"2023-12-22","current":21.232221,"twenty":17.202399,"median":22.070913,"eighty":136.725853,"marketCap":2872528363},{"date":"2023-12-29","current":22.014796,"twenty":17.24036,"median":22.124938,"eighty":136.725853,"marketCap":2978403741},{"date":"2024-01-05","current":22.468052,"twenty":17.286088,"median":22.135192,"eighty":136.725853,"marketCap":3039725227},{"date":"2024-01-12","current":19.13237,"twenty":17.335465,"median":22.141087,"eighty":136.725853,"marketCap":2588437416},{"date":"2024-01-19","current":19.982225,"twenty":17.387138,"median":22.142024,"eighty":136.811575,"marketCap":2703415202},{"date":"2024-01-26","current":18.852626,"twenty":17.422865,"median":22.141087,"eighty":136.725853,"marketCap":2550590561},{"date":"2024-02-02","current":18.941152,"twenty":17.46864,"median":22.141087,"eighty":136.725853,"marketCap":2562567414},{"date":"2024-02-09","current":19.33421,"twenty":17.504863,"median":22.141087,"eighty":136.725853,"marketCap":2615744640},{"date":"2024-02-16","current":19.656447,"twenty":17.522975,"median":22.141087,"eighty":136.725853,"marketCap":2659340384},{"date":"2024-02-23","current":18.381664,"twenty":17.538898,"median":22.141087,"eighty":136.725853,"marketCap":2486873705},{"date":"2024-03-01","current":16.275167,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2238567788},{"date":"2024-03-08","current":16.35074,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2248962507},{"date":"2024-03-15","current":15.102405,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2077260279},{"date":"2024-03-22","current":15.570968,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2141708734},{"date":"2024-03-28","current":15.217797,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2093131914},{"date":"2024-04-05","current":14.51845,"twenty":17.541086,"median":22.141087,"eighty":136.725853,"marketCap":1996940190},{"date":"2024-04-12","current":14.039397,"twenty":17.541086,"median":22.141087,"eighty":136.725853,"marketCap":1931048859},{"date":"2024-04-19","current":13.731277,"twenty":17.541086,"median":22.141087,"eighty":136.725853,"marketCap":1888668503},{"date":"2024-04-26","current":14.505771,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":1995196248},{"date":"2024-05-03","current":15.155919,"twenty":17.539997,"median":22.13814,"eighty":136.725853,"marketCap":2084620915},{"date":"2024-05-10","current":13.403463,"twenty":17.539547,"median":22.131576,"eighty":136.697279,"marketCap":2073381749},{"date":"2024-05-17","current":13.511345,"twenty":17.530801,"median":22.05366,"eighty":135.854351,"marketCap":2090069984},{"date":"2024-05-24","current":13.704184,"twenty":17.508911,"median":22.00683,"eighty":135.168578,"marketCap":2119900182},{"date":"2024-05-31","current":13.324829,"twenty":17.475125,"median":21.966223,"eighty":134.725684,"marketCap":2061217824},{"date":"2024-06-07","current":12.945475,"twenty":17.443361,"median":21.871533,"eighty":134.497093,"marketCap":2002535466},{"date":"2024-06-14","current":12.844313,"twenty":17.405249,"median":21.781654,"eighty":133.58273,"marketCap":1986886837},{"date":"2024-06-21","current":12.575604,"twenty":17.358268,"median":21.674645,"eighty":132.754088,"marketCap":1945320167},{"date":"2024-06-28","current":12.755797,"twenty":17.336744,"median":21.614656,"eighty":132.425489,"marketCap":1973194287},{"date":"2024-07-05","current":12.189927,"twenty":17.288452,"median":21.572163,"eighty":131.639708,"marketCap":1885659770},{"date":"2024-07-12","current":12.382765,"twenty":17.24036,"median":21.503692,"eighty":131.082518,"marketCap":1915489969},{"date":"2024-07-15","current":12.234185,"twenty":17.234529,"median":21.494523,"eighty":131.039657,"marketCap":1892506045},{"date":"2024-08-02","current":13.419668,"twenty":17.178354,"median":21.27173,"eighty":127.439353,"marketCap":2075888414},{"date":"2024-08-09","current":12.955493,"twenty":17.092401,"median":21.221339,"eighty":126.89645,"marketCap":2157283960},{"date":"2024-08-16","current":13.247985,"twenty":17.032163,"median":21.221339,"eighty":126.89645,"marketCap":2205988253},{"date":"2024-08-23","current":13.806318,"twenty":16.959704,"median":21.221339,"eighty":126.89645,"marketCap":2298959073},{"date":"2024-08-30","current":14.282801,"twenty":16.872062,"median":21.221339,"eighty":126.89645,"marketCap":2378300662},{"date":"2024-09-06","current":13.277217,"twenty":16.780301,"median":21.221339,"eighty":126.89645,"marketCap":2210855835},{"date":"2024-09-13","current":13.59877,"twenty":16.71348,"median":21.221339,"eighty":126.89645,"marketCap":2264399239},{"date":"2024-09-20","current":14.642356,"twenty":16.670797,"median":21.221339,"eighty":126.89645,"marketCap":2438171923},{"date":"2024-09-27","current":13.996327,"twenty":16.55239,"median":21.221339,"eighty":126.89645,"marketCap":2330598357},{"date":"2024-10-04","current":13.540306,"twenty":16.5135,"median":21.221339,"eighty":126.89645,"marketCap":2254664075},{"date":"2024-10-11","current":13.531536,"twenty":16.426064,"median":21.221339,"eighty":126.89645,"marketCap":2253203800},{"date":"2024-10-18","current":14.531274,"twenty":16.364092,"median":21.221339,"eighty":126.89645,"marketCap":2419675111},{"date":"2024-10-25","current":14.507888,"twenty":16.317458,"median":21.221339,"eighty":126.89645,"marketCap":2415781045},{"date":"2024-10-31","current":14.844058,"twenty":16.27264,"median":21.221339,"eighty":126.89645,"marketCap":2471758241},{"date":"2024-11-08","current":14.135704,"twenty":16.166898,"median":21.224341,"eighty":126.910737,"marketCap":2229511431},{"date":"2024-11-15","current":13.736507,"twenty":16.152023,"median":21.224341,"eighty":126.910737,"marketCap":2166549370},{"date":"2024-11-22","current":13.581034,"twenty":16.064226,"median":21.224341,"eighty":126.910737,"marketCap":2142027840},{"date":"2024-11-29","current":13.776137,"twenty":15.994214,"median":21.224341,"eighty":126.910737,"marketCap":2172799957},{"date":"2024-12-06","current":13.291427,"twenty":15.935942,"median":21.224341,"eighty":126.910737,"marketCap":2096350478},{"date":"2024-12-13","current":13.565792,"twenty":15.807043,"median":21.224341,"eighty":126.910737,"marketCap":2139623768},{"date":"2024-12-20","current":12.008012,"twenty":15.686835,"median":21.224341,"eighty":126.910737,"marketCap":1893927645},{"date":"2024-12-27","current":11.636096,"twenty":15.646552,"median":21.224341,"eighty":126.910737,"marketCap":1835268297},{"date":"2025-01-03","current":11.084319,"twenty":15.591987,"median":21.224341,"eighty":126.910737,"marketCap":1748240903},{"date":"2025-01-10","current":11.166628,"twenty":15.560792,"median":21.228281,"eighty":126.925024,"marketCap":1761222890},{"date":"2025-01-17","current":10.870924,"twenty":15.437583,"median":21.228281,"eighty":126.925024,"marketCap":1714583900},{"date":"2025-01-24","current":11.093464,"twenty":15.383863,"median":21.228281,"eighty":126.925024,"marketCap":1749683346},{"date":"2025-01-31","current":11.087367,"twenty":15.323293,"median":21.228281,"eighty":126.925024,"marketCap":1748721718},{"date":"2025-02-07","current":9.996007,"twenty":15.286811,"median":21.228281,"eighty":126.925024,"marketCap":1576590188},{"date":"2025-02-14","current":9.675915,"twenty":15.226796,"median":21.228281,"eighty":126.925024,"marketCap":1526104683},{"date":"2025-02-21","current":9.541781,"twenty":15.190673,"median":21.228281,"eighty":126.925024,"marketCap":1504948852},{"date":"2025-02-28","current":9.491561,"twenty":15.146624,"median":21.228281,"eighty":126.925024,"marketCap":1514084325},{"date":"2025-03-07","current":8.459503,"twenty":15.150938,"median":21.232221,"eighty":126.939311,"marketCap":1349451426},{"date":"2025-03-14","current":7.838183,"twenty":15.150938,"median":21.232221,"eighty":126.939311,"marketCap":1250339175},{"date":"2025-03-21","current":8.337031,"twenty":15.150938,"median":21.232221,"eighty":126.939311,"marketCap":1329914877},{"date":"2025-03-28","current":8.513271,"twenty":15.150938,"median":21.232221,"eighty":126.939311,"marketCap":1358028448},{"date":"2025-04-04","current":8.136895,"twenty":15.150938,"median":21.232221,"eighty":126.939311,"marketCap":1297989296},{"date":"2025-04-11","current":7.025689,"twenty":15.129656,"median":21.228281,"eighty":126.925024,"marketCap":1120730845},{"date":"2025-04-17","current":6.867372,"twenty":15.103485,"median":21.228281,"eighty":126.925024,"marketCap":1095476281},{"date":"2025-04-25","current":7.167659,"twenty":15.02822,"median":21.232221,"eighty":126.939311,"marketCap":1143377761},{"date":"2025-05-02","current":7.11108,"twenty":14.919091,"median":21.232221,"eighty":126.939311,"marketCap":1134352344},{"date":"2025-05-09","current":8.267696,"twenty":14.85575,"median":21.232221,"eighty":126.939311,"marketCap":1170929032},{"date":"2025-05-16","current":8.094661,"twenty":14.788517,"median":21.232221,"eighty":126.939311,"marketCap":1146422547},{"date":"2025-05-23","current":8.05472,"twenty":14.654985,"median":21.232221,"eighty":126.939311,"marketCap":1140765857},{"date":"2025-05-30","current":8.534009,"twenty":14.566353,"median":21.232221,"eighty":126.939311,"marketCap":1208646139},{"date":"2025-06-06","current":8.494069,"twenty":14.531274,"median":21.232221,"eighty":126.939311,"marketCap":1202989449},{"date":"2025-06-13","current":8.800281,"twenty":14.488007,"median":21.232221,"eighty":126.939311,"marketCap":1246357407},{"date":"2025-06-20","current":8.434157,"twenty":14.343613,"median":21.234285,"eighty":126.953598,"marketCap":1194504413},{"date":"2025-06-27","current":7.715224,"twenty":14.226625,"median":21.234285,"eighty":126.953598,"marketCap":1092683990},{"date":"2025-07-03","current":7.721881,"twenty":14.193351,"median":21.234285,"eighty":126.953598,"marketCap":1093626772},{"date":"2025-07-11","current":7.392369,"twenty":14.122153,"median":21.234285,"eighty":126.953598,"marketCap":1046959077},{"date":"2025-07-18","current":7.222621,"twenty":14.033159,"median":21.234285,"eighty":126.953598,"marketCap":1022918144},{"date":"2025-07-25","current":7.492221,"twenty":13.897474,"median":21.234285,"eighty":126.953598,"marketCap":1061100803},{"date":"2025-08-01","current":6.972991,"twenty":13.776137,"median":21.234285,"eighty":126.953598,"marketCap":987563830},{"date":"2025-08-08","current":7.462241,"twenty":13.732846,"median":21.221339,"eighty":125.553479,"marketCap":1005223564},{"date":"2025-08-15","current":10.427118,"twenty":13.69294,"median":21.021226,"eighty":99.277176,"marketCap":1404616276},{"date":"2025-08-22","current":10.237283,"twenty":13.648922,"median":20.78743,"eighty":90.715252,"marketCap":1379043983},{"date":"2025-08-29","current":10.444376,"twenty":13.590546,"median":20.630564,"eighty":89.732014,"marketCap":1406941030},{"date":"2025-09-05","current":10.075061,"twenty":13.536798,"median":20.559418,"eighty":88.960126,"marketCap":1357191297},{"date":"2025-09-12","current":9.899032,"twenty":13.476776,"median":20.411425,"eighty":88.500668,"marketCap":1333478808},{"date":"2025-09-19","current":9.47104,"twenty":13.413898,"median":20.353766,"eighty":88.353642,"marketCap":1275824912},{"date":"2025-09-26","current":9.098274,"twenty":13.355633,"median":20.245151,"eighty":88.096346,"marketCap":1225610229},{"date":"2025-10-03","current":9.153498,"twenty":13.320587,"median":20.175213,"eighty":87.765537,"marketCap":1233049442},{"date":"2025-10-10","current":8.618509,"twenty":13.281269,"median":20.08263,"eighty":87.012026,"marketCap":1160982072},{"date":"2025-10-17","current":8.014488,"twenty":13.233369,"median":20.02573,"eighty":86.672028,"marketCap":1079615687},{"date":"2025-10-24","current":8.53222,"twenty":13.124403,"median":19.941502,"eighty":85.964464,"marketCap":1149358303},{"date":"2025-10-31","current":8.511511,"twenty":12.931746,"median":19.876997,"eighty":84.769875,"marketCap":1146568598},{"date":"2025-11-07","current":10.092142,"twenty":12.797526,"median":19.789111,"eighty":83.014748,"marketCap":1126575715},{"date":"2025-11-14","current":10.855233,"twenty":12.718992,"median":19.691439,"eighty":48.995344,"marketCap":1211758828},{"date":"2025-11-21","current":10.439466,"twenty":12.511857,"median":19.655389,"eighty":37.785482,"marketCap":1165347132},{"date":"2025-11-28","current":11.402729,"twenty":12.401434,"median":19.622807,"eighty":36.440831,"marketCap":1272875219},{"date":"2025-12-05","current":11.176321,"twenty":12.144557,"median":19.506706,"eighty":35.037833,"marketCap":1247601524},{"date":"2025-12-12","current":10.661757,"twenty":11.816263,"median":19.487955,"eighty":34.579007,"marketCap":1190161306},{"date":"2025-12-19","current":10.908748,"twenty":11.660484,"median":19.402194,"eighty":34.019399,"marketCap":1217732611},{"date":"2025-12-26","current":11.03636,"twenty":11.452054,"median":19.350344,"eighty":33.595051,"marketCap":1231977784},{"date":"2026-01-02","current":11.02401,"twenty":11.389556,"median":19.319443,"eighty":33.207834,"marketCap":1230599219},{"date":"2026-01-09","current":11.419195,"twenty":11.315394,"median":19.224628,"eighty":32.788791,"marketCap":1274713306},{"date":"2026-01-16","current":10.702922,"twenty":11.310328,"median":19.155252,"eighty":32.685306,"marketCap":1194756524},{"date":"2026-01-23","current":10.762612,"twenty":11.220604,"median":19.123482,"eighty":32.634334,"marketCap":1201419589},{"date":"2026-01-30","current":10.76467,"twenty":11.124513,"median":19.050347,"eighty":31.948488,"marketCap":1201649350},{"date":"2026-02-06","current":11.785564,"twenty":11.11218,"median":18.9587,"eighty":31.544326,"marketCap":1315610741},{"date":"2026-02-13","current":11.340981,"twenty":11.11218,"median":18.925299,"eighty":31.190095,"marketCap":1265982393},{"date":"2026-02-20","current":11.748516,"twenty":11.11218,"median":18.879365,"eighty":30.734335,"marketCap":1311475045},{"date":"2026-02-27","current":12.409251,"twenty":11.11218,"median":18.769758,"eighty":30.595446,"marketCap":1217273089},{"date":"2026-03-05","current":9.231845,"twenty":11.084319,"median":18.68772,"eighty":30.295751,"marketCap":905588613}],"updateTime":1772789574185},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"AMPH\",pageSize:20,pageCount:8,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"12195672","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718421000010-AMPH","pdf_url":null,"pub_time":1615737600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"S-8  - Securities to be offered to employees in employee benefit plans","symbol":"AMPH","title":"S-8  - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000010/0001297184-21-000010-index.htm","us_notice_code":"Form S-8","us_title_en":"S-8  - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000010/amph-20210315xs8.htm","primary":true,"translateUrl":null,"linkName":"amph-20210315xs8.htm","type":"S-8","id":"NTFILE3CywAooWLi7rDYnu","market":"us","size":133089},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000010/amph-20210315ex51beb67af.htm","primary":false,"translateUrl":null,"linkName":"amph-20210315ex51beb67af.htm","type":"EX-5.1","id":"NTFILEEDVC1jDGiSEzJAbz","market":"us","size":8276},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000010/amph-20210315ex231d29fae.htm","primary":false,"translateUrl":null,"linkName":"amph-20210315ex231d29fae.htm","type":"EX-23.1","id":"NTFILEJ5xumkbADFmUb5Ae","market":"us","size":2611}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2021-03-15 00:00","pubTimestamp":1615737600,"title_zh":"S-8  - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12195484","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718421000008-AMPH","pdf_url":null,"pub_time":1615737600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"AMPH","title":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/0001297184-21-000008-index.htm","us_notice_code":"Form 10-K","us_title_en":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231x10k.htm","primary":true,"translateUrl":null,"linkName":"amph-20201231x10k.htm","type":"10-K","id":"NTFILEANAtbwBKPWMSV3st","market":"us","size":4461752},{"description":"EX-4.2","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex429405cd2.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex429405cd2.htm","type":"EX-4.2","id":"NTFILEGFraPzijabmB2snF","market":"us","size":28597},{"description":"EX-10.40","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex10400a25b.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex10400a25b.htm","type":"EX-10.40","id":"NTFILE7Y2wLxe7D7eA62aq","market":"us","size":161494},{"description":"EX-21.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex2111ae2e6.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex2111ae2e6.htm","type":"EX-21.1","id":"NTFILE5sPavbrTmgX4xUsb","market":"us","size":19983},{"description":"EX-23.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex231357d13.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex231357d13.htm","type":"EX-23.1","id":"NTFILECHy72n1UcQjfGtph","market":"us","size":11317},{"description":"EX-31.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex311273657.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex311273657.htm","type":"EX-31.1","id":"NTFILETUyY5xbaDkTmp7c9","market":"us","size":19376},{"description":"EX-31.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex3124acfaf.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex3124acfaf.htm","type":"EX-31.2","id":"NTFILE6CnML8j1KTpVy58D","market":"us","size":18909},{"description":"EX-32.1","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex321fced5d.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex321fced5d.htm","type":"EX-32.1","id":"NTFILE9swy1J3tEyDCvNKk","market":"us","size":9552},{"description":"EX-32.2","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231ex322472937.htm","primary":false,"translateUrl":null,"linkName":"amph-20201231ex322472937.htm","type":"EX-32.2","id":"NTFILEh52ze61AGENdcBdc","market":"us","size":9534},{"description":"GRAPHIC","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000008/amph-20201231x10k001.jpg","primary":false,"translateUrl":null,"linkName":"amph-20201231x10k001.jpg","type":"GRAPHIC","id":"NTFILE6vKrpHqd5Z7tufgX","market":"us","size":49375}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2021-03-15 00:00","pubTimestamp":1615737600,"title_zh":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"12195201","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718421000006-AMPH","pdf_url":null,"pub_time":1615737600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000006/0001297184-21-000006-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000006/amph-20210315ex991e88dd9.htm","primary":true,"translateUrl":null,"linkName":"amph-20210315ex991e88dd9.htm","type":"EX-99.1","id":"NTFILE8iMfcyNbgr7Ntihw","market":"us","size":878922},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718421000006/amph-20210315x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20210315x8k.htm","type":"8-K","id":"NTFILEDWPjZrw3HPmtpYkJ","market":"us","size":100235}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-03-15 00:00","pubTimestamp":1615737600,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11836375","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465921021973-AMPH","pdf_url":null,"pub_time":1613059200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"AMPH","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000110465921021973/0001104659-21-021973-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SC 13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000110465921021973/a21-6486_1sc13ga.htm","primary":true,"translateUrl":null,"linkName":"a21-6486_1sc13ga.htm","type":"SC 13G/A","id":"NTFILE7GGr7QUpfxgvqYNs","market":"us","size":94886}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-12 00:00","pubTimestamp":1613059200,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11834751","market":"us","labels":[],"media":"sec.gov","original_id":"AN162363221000244-AMPH","pdf_url":null,"pub_time":1613059200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","symbol":"AMPH","title":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000162363221000244/0001623632-21-000244-index.htm","us_notice_code":"Form SC 13G","us_title_en":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1056288/000162363221000244/amphastar.htm","primary":true,"translateUrl":null,"linkName":"amphastar.htm","type":"SC 13G","id":"NTFILEC7Q5koVn7cG1qKJA","market":"us","size":104862},{"description":"GRAPHIC","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1056288/000162363221000244/image_001.jpg","primary":false,"translateUrl":null,"linkName":"image_001.jpg","type":"GRAPHIC","id":"NTFILEEwDDoh8FgQbGJNGw","market":"us","size":64807},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1056288/000162363221000244/image_002.jpg","primary":false,"translateUrl":null,"linkName":"image_002.jpg","type":"GRAPHIC","id":"NTFILEGX5GEGAAWgWtFXiA","market":"us","size":60208}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-12 00:00","pubTimestamp":1613059200,"title_zh":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11834756","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465921017435-AMPH","pdf_url":null,"pub_time":1612886400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"AMPH","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000110465921017435/0001104659-21-017435-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SCHEDULE 13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/102909/000110465921017435/tv0225-amphastarpharmaceutic.htm","primary":true,"translateUrl":null,"linkName":"tv0225-amphastarpharmaceutic.htm","type":"SC 13G/A","id":"NTFILEFHPJ36i8nEp3yrM2","market":"us","size":12359}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-10 00:00","pubTimestamp":1612886400,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":false,"id":"11834750","market":"us","labels":[],"media":"sec.gov","original_id":"AN83423721001378-AMPH","pdf_url":null,"pub_time":1611590400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"AMPH","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000083423721001378/0000834237-21-001378-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-01-26 00:00","pubTimestamp":1611590400,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11446247","market":"us","labels":[],"media":"sec.gov","original_id":"AN155837021000171-AMPH","pdf_url":null,"pub_time":1610380800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/0001558370-21-000171-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1.htm","primary":true,"translateUrl":null,"linkName":"amph-20210112xex99d1.htm","type":"EX-99.1","id":"NTFILE5qoeyuMJcSVYCn3S","market":"us","size":35582},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20210112x8k.htm","type":"8-K","id":"NTFILE68H6rNi7GtJvfr45","market":"us","size":99725},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g001.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g001.jpg","type":"GRAPHIC","id":"NTFILEBuXHVdk6igsSW2wK","market":"us","size":54897},{"description":"GRAPHIC","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g002.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g002.jpg","type":"GRAPHIC","id":"NTFILE47DfC3r3MtnknUrm","market":"us","size":335750},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g003.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g003.jpg","type":"GRAPHIC","id":"NTFILE519gThYDfYuGyA6M","market":"us","size":132641},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g004.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g004.jpg","type":"GRAPHIC","id":"NTFILECv1CdxFt6WQCpJ6w","market":"us","size":135767},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g005.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g005.jpg","type":"GRAPHIC","id":"NTFILE7vmMHKhCsKNsmbHG","market":"us","size":132514},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g006.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g006.jpg","type":"GRAPHIC","id":"NTFILEEUAyQmQ2J25YbmAz","market":"us","size":112172},{"description":"GRAPHIC","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g007.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g007.jpg","type":"GRAPHIC","id":"NTFILE8gxw1E2Q6jL7gwVY","market":"us","size":130940},{"description":"GRAPHIC","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g008.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g008.jpg","type":"GRAPHIC","id":"NTFILE7a5nGacebVtC1rpg","market":"us","size":88607},{"description":"GRAPHIC","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g009.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g009.jpg","type":"GRAPHIC","id":"NTFILE6TaVTCB154EdGHQj","market":"us","size":120496},{"description":"GRAPHIC","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g010.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g010.jpg","type":"GRAPHIC","id":"NTFILEAge78aXQJs6Fo1fY","market":"us","size":137328},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g011.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g011.jpg","type":"GRAPHIC","id":"NTFILEFNcqyzQsGKawZjqD","market":"us","size":141765},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g012.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g012.jpg","type":"GRAPHIC","id":"NTFILENkWNbi1Zh2f23hLT","market":"us","size":124672},{"description":"GRAPHIC","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g013.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g013.jpg","type":"GRAPHIC","id":"NTFILE8uC542NyAx5uDbvu","market":"us","size":158242},{"description":"GRAPHIC","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g014.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g014.jpg","type":"GRAPHIC","id":"NTFILE8WPU3YQvVNWrmtUv","market":"us","size":215627},{"description":"GRAPHIC","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g015.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g015.jpg","type":"GRAPHIC","id":"NTFILE322gUn1xwPMSboyC","market":"us","size":181556},{"description":"GRAPHIC","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g016.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g016.jpg","type":"GRAPHIC","id":"NTFILEFuTkBtnMCwT16qjU","market":"us","size":168781},{"description":"GRAPHIC","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g017.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g017.jpg","type":"GRAPHIC","id":"NTFILE26kN8kWyK92cfpEc","market":"us","size":128767},{"description":"GRAPHIC","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g018.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g018.jpg","type":"GRAPHIC","id":"NTFILE5k3qdDfeCoo5UAyX","market":"us","size":125705},{"description":"GRAPHIC","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g019.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g019.jpg","type":"GRAPHIC","id":"NTFILEBPBbHF2eygkLaxSu","market":"us","size":142952},{"description":"GRAPHIC","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g020.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g020.jpg","type":"GRAPHIC","id":"NTFILEGXcVXyvvD6c91ghp","market":"us","size":65668},{"description":"GRAPHIC","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g021.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g021.jpg","type":"GRAPHIC","id":"NTFILE57N9kvKfCLXcNTQn","market":"us","size":93224},{"description":"GRAPHIC","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g022.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g022.jpg","type":"GRAPHIC","id":"NTFILEFxPUZNQqKKFfzrgV","market":"us","size":82195},{"description":"GRAPHIC","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837021000171/amph-20210112xex99d1g023.jpg","primary":false,"translateUrl":null,"linkName":"amph-20210112xex99d1g023.jpg","type":"GRAPHIC","id":"NTFILE3SPFA9FYoz4Lk8Bp","market":"us","size":167791}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-01-12 00:00","pubTimestamp":1610380800,"title_zh":"8-K  - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10758048","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000058-AMPH","pdf_url":null,"pub_time":1604592000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000058/0001297184-20-000058-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000058/amph-20201103ex991aaec0d.htm","primary":true,"translateUrl":null,"linkName":"amph-20201103ex991aaec0d.htm","type":"EX-99.1","id":"NTFILEBBMa129fBsWUb268","market":"us","size":140877},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000058/amph-20201103x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20201103x8k.htm","type":"8-K","id":"NTFILEEZsbJLnpW8NQmEby","market":"us","size":101500}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-11-06 00:00","pubTimestamp":1604592000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10757947","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000056-AMPH","pdf_url":null,"pub_time":1604592000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"AMPH","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/0001297184-20-000056-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930x10q.htm","primary":true,"translateUrl":null,"linkName":"amph-20200930x10q.htm","type":"10-Q","id":"NTFILE8Cv5gukfnbDMMUAu","market":"us","size":3055123},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930ex1013f0b05.htm","primary":false,"translateUrl":null,"linkName":"amph-20200930ex1013f0b05.htm","type":"EX-10.1","id":"NTFILEHTXp7cqaffqbdnAZ","market":"us","size":814440},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930ex311813f4a.htm","primary":false,"translateUrl":null,"linkName":"amph-20200930ex311813f4a.htm","type":"EX-31.1","id":"NTFILEEmHqgbQqNmzJ2eQi","market":"us","size":18831},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930ex3126792d1.htm","primary":false,"translateUrl":null,"linkName":"amph-20200930ex3126792d1.htm","type":"EX-31.2","id":"NTFILE8LYqF3eoz5bs3ER9","market":"us","size":18486},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930ex3218ae9ba.htm","primary":false,"translateUrl":null,"linkName":"amph-20200930ex3218ae9ba.htm","type":"EX-32.1","id":"NTFILEDcdmwqk8uYUHJ1eg","market":"us","size":9574},{"description":"EX-32.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/amph-20200930ex32281145c.htm","primary":false,"translateUrl":null,"linkName":"amph-20200930ex32281145c.htm","type":"EX-32.2","id":"NTFILE4aor7m3E2cEVnHUm","market":"us","size":9575}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":53888,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":53889,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":53890,"name":"CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":53891,"name":"CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":53892,"name":"CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R6.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":53893,"name":"CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS","name_zh":"简明综合现金流量表","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000056/R7.htm","cdn_url":"https://static.tigerbbs.com/d7dc0208ee3832417422785c26aa4ad3","translation_url":"https://static.tigerbbs.com/64b5767d385a4770dbeffaf455a42518","translate_status":1}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2020-11-06 00:00","pubTimestamp":1604592000,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10755409","market":"us","labels":[],"media":"sec.gov","original_id":"AN155837020013013-AMPH","pdf_url":null,"pub_time":1604592000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020013013/0001558370-20-013013-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020013013/amph-20201106xex99d1.htm","primary":true,"translateUrl":null,"linkName":"amph-20201106xex99d1.htm","type":"EX-99.1","id":"NTFILEGse4MKeCo7k9co8v","market":"us","size":721471},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020013013/amph-20201106x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20201106x8k.htm","type":"8-K","id":"NTFILE71kRcWNkXFrWnhXw","market":"us","size":100292}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-11-06 00:00","pubTimestamp":1604592000,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10243559","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000047-AMPH","pdf_url":null,"pub_time":1596988800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"AMPH","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/0001297184-20-000047-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630x10q.htm","primary":true,"translateUrl":null,"linkName":"amph-20200630x10q.htm","type":"10-Q","id":"NTFILEDPoYJPwWbaQNJ7xT","market":"us","size":2884747},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex101e5af3e.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex101e5af3e.htm","type":"EX-10.1","id":"NTFILE8aKfS8z3uAuC6q4u","market":"us","size":79377},{"description":"EX-10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex102d763a6.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex102d763a6.htm","type":"EX-10.2","id":"NTFILEtFY686uk9QCuafnp","market":"us","size":209089},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex311750234.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex311750234.htm","type":"EX-31.1","id":"NTFILE9Bj9r3mzPgjH6xi5","market":"us","size":18241},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex31225b98f.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex31225b98f.htm","type":"EX-31.2","id":"NTFILE4ZJA6XAA9yrXBoZW","market":"us","size":16760},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex321dd1370.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex321dd1370.htm","type":"EX-32.1","id":"NTFILEHH2nLepzt3eACdtf","market":"us","size":9547},{"description":"EX-32.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex322123c4d.htm","primary":false,"translateUrl":null,"linkName":"amph-20200630ex322123c4d.htm","type":"EX-32.2","id":"NTFILE4yFjuEy8kQhd41u7","market":"us","size":9548},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630ex102d763a6004.jpg","primary":false,"translateUrl":null,"linkName":"amph-20200630ex102d763a6004.jpg","type":"GRAPHIC","id":"NTFILEEwTU3KDF5DeV8gNB","market":"us","size":2454},{"description":"EX-101.SCH","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630.xsd","primary":false,"translateUrl":null,"linkName":"amph-20200630.xsd","type":"EX-101.SCH","id":"NTFILE9S6vCRoFx8y9wzqm","market":"us","size":63884},{"description":"EX-101.CAL","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630_cal.xml","primary":false,"translateUrl":null,"linkName":"amph-20200630_cal.xml","type":"EX-101.CAL","id":"NTFILE5NNfw6tJ3vw1KRrc","market":"us","size":63935},{"description":"EX-101.DEF","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630_def.xml","primary":false,"translateUrl":null,"linkName":"amph-20200630_def.xml","type":"EX-101.DEF","id":"NTFILEGnm8bGZFoaRydrQz","market":"us","size":231453},{"description":"EX-101.LAB","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630_lab.xml","primary":false,"translateUrl":null,"linkName":"amph-20200630_lab.xml","type":"EX-101.LAB","id":"NTFILEtou17H2EmaxyoxGp","market":"us","size":488500},{"description":"EX-101.PRE","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630_pre.xml","primary":false,"translateUrl":null,"linkName":"amph-20200630_pre.xml","type":"EX-101.PRE","id":"NTFILE2sCUXUz3ESwQCxmr","market":"us","size":442341},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/amph-20200630x10q_htm.xml","primary":false,"translateUrl":null,"linkName":"amph-20200630x10q_htm.xml","type":"XML","id":"NTFILEPoE8Gd6qVoLaSEvy","market":"us","size":2407640}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":27580,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":27581,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":27582,"name":"CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":27583,"name":"CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":27584,"name":"CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R6.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":27585,"name":"CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS","name_zh":"简明综合现金流量表","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000047/R7.htm","cdn_url":"https://static.tigerbbs.com/546ff0d02bff9f0f66260eca1e1848a4","translation_url":"https://static.tigerbbs.com/abe54aee14cde86a6a292b4c9e32d1c7","translate_status":1}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2020-08-10 00:00","pubTimestamp":1596988800,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10243558","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000050-AMPH","pdf_url":null,"pub_time":1596988800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K/A [Amend]  - Current report","symbol":"AMPH","title":"8-K/A [Amend]  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/0001297184-20-000050-index.htm","us_notice_code":"Form 8-K/A","us_title_en":"8-K/A [Amend]  - Current report","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/amph-20200608x8ka.htm","primary":true,"translateUrl":null,"linkName":"amph-20200608x8ka.htm","type":"8-K/A","id":"NTFILE2bZXTrXsBQ96zNAr","market":"us","size":45166},{"description":"EX-101.SCH","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/amph-20200608.xsd","primary":false,"translateUrl":null,"linkName":"amph-20200608.xsd","type":"EX-101.SCH","id":"NTFILEDu3kzQDKKDPVpygK","market":"us","size":3212},{"description":"EX-101.LAB","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/amph-20200608_lab.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608_lab.xml","type":"EX-101.LAB","id":"NTFILE5PKdHp1WUmqWt6Cb","market":"us","size":15499},{"description":"EX-101.PRE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/amph-20200608_pre.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608_pre.xml","type":"EX-101.PRE","id":"NTFILEH2JkrdbHimR5EY8n","market":"us","size":10523},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000050/amph-20200608x8ka_htm.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608x8ka_htm.xml","type":"XML","id":"NTFILE3QUCHe3bihQx3KnH","market":"us","size":4651}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-08-10 00:00","pubTimestamp":1596988800,"title_zh":"8-K/A [Amend]  - Current report","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10232991","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000035-AMPH","pdf_url":null,"pub_time":1596643200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/0001297184-20-000035-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806ex991a2bacc.htm","primary":true,"translateUrl":null,"linkName":"amph-20200806ex991a2bacc.htm","type":"EX-99.1","id":"NTFILEGFYtSApvaaHAKKtr","market":"us","size":752047},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20200806x8k.htm","type":"8-K","id":"NTFILEG1avqPdKh1SW5fK4","market":"us","size":99244},{"description":"EX-101.SCH","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806.xsd","primary":false,"translateUrl":null,"linkName":"amph-20200806.xsd","type":"EX-101.SCH","id":"NTFILE6kqjiMRPbDwy2NRn","market":"us","size":3210},{"description":"EX-101.LAB","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806_lab.xml","primary":false,"translateUrl":null,"linkName":"amph-20200806_lab.xml","type":"EX-101.LAB","id":"NTFILEBeP3tAd4LnMEFnaX","market":"us","size":15497},{"description":"EX-101.PRE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806_pre.xml","primary":false,"translateUrl":null,"linkName":"amph-20200806_pre.xml","type":"EX-101.PRE","id":"NTFILEDWpy9y15WJoqc3gs","market":"us","size":10521},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000035/amph-20200806x8k_htm.xml","primary":false,"translateUrl":null,"linkName":"amph-20200806x8k_htm.xml","type":"XML","id":"NTFILE9SPYG7nyv1bAejdz","market":"us","size":4641}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-08-06 00:00","pubTimestamp":1596643200,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9800428","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000031-AMPH","pdf_url":null,"pub_time":1591632000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/0001297184-20-000031-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-101.SCH","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/amph-20200608.xsd","primary":true,"translateUrl":null,"linkName":"amph-20200608.xsd","type":"EX-101.SCH","id":"NTFILEjpS3ED7TDo7iWxVA","market":"us","size":3263},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/amph-20200608x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20200608x8k.htm","type":"8-K","id":"NTFILE24KLT8tbfiBQBKeg","market":"us","size":60942},{"description":"EX-101.LAB","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/amph-20200608_lab.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608_lab.xml","type":"EX-101.LAB","id":"NTFILECqgdVy6aNZG3Ht6J","market":"us","size":15497},{"description":"EX-101.PRE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/amph-20200608_pre.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608_pre.xml","type":"EX-101.PRE","id":"NTFILE2Xr4inLLDLrQa3QC","market":"us","size":10521},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000031/amph-20200608x8k_htm.xml","primary":false,"translateUrl":null,"linkName":"amph-20200608x8k_htm.xml","type":"XML","id":"NTFILE9oxZxoG5UHLGk6tm","market":"us","size":4649}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-06-09 00:00","pubTimestamp":1591632000,"title_zh":"8-K  - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9800435","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000027-AMPH","pdf_url":null,"pub_time":1589126400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"AMPH","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/0001297184-20-000027-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331x10q.htm","primary":true,"translateUrl":null,"linkName":"amph-20200331x10q.htm","type":"10-Q","id":"NTFILEBb8xkiBY3DVYKFRE","market":"us","size":2534378},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331ex3111285c4.htm","primary":false,"translateUrl":null,"linkName":"amph-20200331ex3111285c4.htm","type":"EX-31.1","id":"NTFILE4w5CcfX5bDcSGxG6","market":"us","size":22849},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331ex31221ccc3.htm","primary":false,"translateUrl":null,"linkName":"amph-20200331ex31221ccc3.htm","type":"EX-31.2","id":"NTFILE9a8abUJsHFLaDsGC","market":"us","size":22975},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331ex3211b28a8.htm","primary":false,"translateUrl":null,"linkName":"amph-20200331ex3211b28a8.htm","type":"EX-32.1","id":"NTFILEF2JCZSNMWoMserkP","market":"us","size":12327},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331ex32256e414.htm","primary":false,"translateUrl":null,"linkName":"amph-20200331ex32256e414.htm","type":"EX-32.2","id":"NTFILE2NPuVHgkjUAjVNpu","market":"us","size":12300},{"description":"EX-101.INS","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331.xml","primary":false,"translateUrl":null,"linkName":"amph-20200331.xml","type":"EX-101.INS","id":"NTFILE8PJ1HLSoT8gZfQ1W","market":"us","size":2431960},{"description":"EX-101.SCH","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331.xsd","primary":false,"translateUrl":null,"linkName":"amph-20200331.xsd","type":"EX-101.SCH","id":"NTFILECi8jUnWTHhe9HHgk","market":"us","size":62643},{"description":"EX-101.CAL","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331_cal.xml","primary":false,"translateUrl":null,"linkName":"amph-20200331_cal.xml","type":"EX-101.CAL","id":"NTFILEBFpznUcGq1EL9mEZ","market":"us","size":62232},{"description":"EX-101.DEF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331_def.xml","primary":false,"translateUrl":null,"linkName":"amph-20200331_def.xml","type":"EX-101.DEF","id":"NTFILEGaBfeBR8FvW1PFeQ","market":"us","size":217351},{"description":"EX-101.LAB","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331_lab.xml","primary":false,"translateUrl":null,"linkName":"amph-20200331_lab.xml","type":"EX-101.LAB","id":"NTFILEE3PZXwMCTVFktdJx","market":"us","size":467861},{"description":"EX-101.PRE","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/amph-20200331_pre.xml","primary":false,"translateUrl":null,"linkName":"amph-20200331_pre.xml","type":"EX-101.PRE","id":"NTFILECfM5hJRQHAteaSht","market":"us","size":423507}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":9671,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":9672,"name":"CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":9673,"name":"CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":9674,"name":"CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":9675,"name":"CONSOLIDATED STATEMENTS OF STOCKHOLDERS??? EQUITY","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R6.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":9676,"name":"CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000027/R7.htm","cdn_url":"","translation_url":"","translate_status":0}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2020-05-11 00:00","pubTimestamp":1589126400,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9690955","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000023-AMPH","pdf_url":null,"pub_time":1588780800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Current report, items 2.02 and 9.01","symbol":"AMPH","title":"Current report, items 2.02 and 9.01","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000023/0001297184-20-000023-index.htm","us_notice_code":"Form 8-K","us_title_en":null,"is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000023/amph-20200507ex99117e197.htm","primary":true,"translateUrl":null,"linkName":"amph-20200507ex99117e197.htm","type":"EX-99.1","id":"NTFILEFerszsWEPsP8PpAa","market":"us","size":657888},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000023/amph-20200507x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20200507x8k.htm","type":"8-K","id":"NTFILE3BrNoE21SHve55yS","market":"us","size":47073}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-05-07 00:00","pubTimestamp":1588780800,"title_zh":"Current report, items 2.02 and 9.01","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9447546","market":"us","labels":[],"media":"sec.gov","original_id":"AN155837020003855-AMPH","pdf_url":null,"pub_time":1586793600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"[Amend] Current report, items 5.02 and 9.01","symbol":"AMPH","title":"[Amend] Current report, items 5.02 and 9.01","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020003855/0001558370-20-003855-index.htm","us_notice_code":"Form 8-K/A","us_title_en":null,"is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020003855/amph-20200410x8ka.htm","primary":true,"translateUrl":null,"linkName":"amph-20200410x8ka.htm","type":"8-K/A","id":"NTFILEJ9vdytyZLBZDhCNn","market":"us","size":57884},{"description":"EX-99.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000155837020003855/amph-20200410xex99d1.htm","primary":false,"translateUrl":null,"linkName":"amph-20200410xex99d1.htm","type":"EX-99.1","id":"NTFILE5P7W7xEjUNfLS6zD","market":"us","size":12298}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-04-14 00:00","pubTimestamp":1586793600,"title_zh":"Amend] Current report, items 5.02 and 9.01","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9444827","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000013-AMPH","pdf_url":null,"pub_time":1586707200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"AMPH","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000013/0001297184-20-000013-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000013/amph-20200413ex991eec9fa.htm","primary":true,"translateUrl":null,"linkName":"amph-20200413ex991eec9fa.htm","type":"EX-99.1","id":"NTFILEEhLJn3bWd8dnZ7Px","market":"us","size":12302},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000013/amph-20200413x8k.htm","primary":false,"translateUrl":null,"linkName":"amph-20200413x8k.htm","type":"8-K","id":"NTFILE8Jc5Dh7CzQtiZYtt","market":"us","size":55503}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-04-13 00:00","pubTimestamp":1586707200,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"9190744","market":"us","labels":[],"media":"sec.gov","original_id":"AN129718420000011-AMPH","pdf_url":null,"pub_time":1584288000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Securities to be offered to employees in employee benefit plans","symbol":"AMPH","title":"Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000011/0001297184-20-000011-index.htm","us_notice_code":"Form S-8","us_title_en":null,"is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000011/amph-20200316xs8.htm","primary":true,"translateUrl":null,"linkName":"amph-20200316xs8.htm","type":"S-8","id":"NTFILE9YN1rtTwHY4KhbSr","market":"us","size":147912},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000011/amph-20200316ex51f253d17.htm","primary":false,"translateUrl":null,"linkName":"amph-20200316ex51f253d17.htm","type":"EX-5.1","id":"NTFILE36orVcFjCDoFYkfU","market":"us","size":10331},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1297184/000129718420000011/amph-20200316ex231eafe8d.htm","primary":false,"translateUrl":null,"linkName":"amph-20200316ex231eafe8d.htm","type":"EX-23.1","id":"NTFILEJ5c4V9ATVHvncaY7","market":"us","size":3163}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2020-03-16 00:00","pubTimestamp":1584288000,"title_zh":"Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":11,"pageCount":8,"totalSize":218,"code":"91000000","status":"200"}]}}