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v3.21.2

Segment Reporting (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 266,005 | $ 136,061 | $ 554,540 | $ 364,674
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember
United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 102,174 | $ 47,097 | $ 217,461 | $ 153,015
Germany |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 16,350 | 9,761 | 35,530 | 26,591
South Korea |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 25,516 | 20,385 | 50,156 | 36,802
Japan |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 17,633 | 9,349 | 35,553 | 25,486
China |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 33,857 | 23,517 | 67,372 | 36,520
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 70,475 | 25,952 | 148,468 | 86,260
Non U.S. |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 163,831 | $ 88,964 | $ 337,079 | $ 211,659

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