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Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 810,278 | $ 983,652
Accruals and reserves | 73,535 | 52,750
Stock-based compensation | 28,238 | 29,572
Research and development credits | 175,746 | 177,109
Intangibles | 135,500 | 135,564
Capitalized research and development expenses | 299,061 | 231,819
Lease liability | 30,697 | 44,682
Investments and other basis differences | 81,248 | 51,368
Other | 18,139 | 31,852
Gross deferred tax assets | 1,652,442 | 1,738,368
Valuation allowance | (1,488,328) | (1,533,933)
Net deferred tax assets | 164,114 | 204,435
Deferred tax liabilities: |  |
Capitalized software | (38,394) | (36,109)
Prepaid expenses | (900) | (1,073)
Acquired intangibles | (55,283) | (81,415)
Right-of-use asset | (13,112) | (19,964)
Deferred commissions | (42,313) | (50,703)
Net deferred tax asset | $ 14,112 | $ 15,171

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