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Fair Value Measurement - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 14, 2023 | Apr. 17, 2023 | Jun. 30, 2024 | Dec. 31, 2023 | Jul. 31, 2019
0.375% Convertible Senior Notes due 2024 |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Principal amount |  |  |  |  | $ 287,500
Notes, frequency of periodic payment |  |  | semi-annually |  |
Notes, carrying value |  |  | $ 69,500 | $ 69,500 |
Fair value of convertible senior notes |  |  | 82,600 | 109,800 |
1.00% Convertible Senior Notes due 2028 |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Principal amount | $ 290,100 |  |  |  |
Notes, carrying value |  |  | 517,700 | 510,100 |
Fair value of convertible senior notes |  |  | 497,400 | 596,000 |
Notes for cash | 290,100 |  |  |  |
1.00% Convertible Senior Notes due 2028 | Private Placement |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Principal amount | 600,000 |  |  |  |
1.00% Convertible Senior Notes due 2028 | Exchange Transaction |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Debt istrument cancelled | 309,900 |  |  |  |
1.00% Convertible Senior Notes due 2028 | Subscription Transaction |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Principal amount | 290,100 |  |  |  |
2019 Notes [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Debt Intrument Exchange Amount | $ 217,700 |  |  |  |
Money Market |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Assets, fair value |  |  | 735,008 | $ 658,574 |
Avitide, Inc. |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Business combination contingent consideration |  |  | 125,000 |  |
FlexBiosys, Inc. |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Business combination contingent consideration |  | $ 6,600 | 42,000 |  |
Metenova Holding AB |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Business combination contingent consideration |  |  | $ 10,000 |  |

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