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Segment Reporting (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Product revenues $ 1,046,150 $ 913,098 $ 971,684
Type of Revenue [Extensible List] us-gaap:ProductMember us-gaap:ProductMember us-gaap:ProductMember
United States      
Segment Reporting Information [Line Items]      
Product revenues $ 404,466 $ 377,577 $ 440,316
China      
Segment Reporting Information [Line Items]      
Product revenues 142,816 101,039 71,461
South Korea      
Segment Reporting Information [Line Items]      
Product revenues 93,516 88,745 63,339
Germany      
Segment Reporting Information [Line Items]      
Product revenues 66,929 58,536 81,315
Japan      
Segment Reporting Information [Line Items]      
Product revenues 63,527 57,785 76,197
Romania      
Segment Reporting Information [Line Items]      
Product revenues 51,367 33,147 26,213
Other      
Segment Reporting Information [Line Items]      
Product revenues 223,529 196,269 212,843
Non U.S.      
Segment Reporting Information [Line Items]      
Product revenues $ 641,684 $ 535,521 $ 531,368