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Cash, Cash Equivalents and Investments - Schedule Of Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Cash | $ 85,256 | $ 406,743
Amortized Cost | 1,096,692 | 1,333,022
Gross Unrealized Gains | 61,602 | 158
Gross Unrealized Losses | (20) | (12,641)
Fair Value | 1,158,274 | 1,320,539
Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Cash | 85,256 | 406,743
Fair Value | 695,144 | 598,545
Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Cash | 0 | 0
Fair Value | 151,560 | 77,940
Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Cash | 0 | 0
Fair Value | 311,570 | 644,054
Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 891,826 | 700,337
Gross Unrealized Gains | 61,602 | 150
Gross Unrealized Losses | (20) | (12,471)
Fair Value | 953,408 | 688,016
Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 591,688 | 191,802
Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 151,560 | 77,940
Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 210,160 | 418,274
Level 2 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 119,610 | 225,942
Gross Unrealized Gains | 0 | 8
Gross Unrealized Losses | 0 | (170)
Fair Value | 119,610 | 225,780
Level 2 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 18,200 | 0
Level 2 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Level 2 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 101,410 | 225,780
Money market funds | Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 438,408 | 1,470
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 438,408 | 1,470
Money market funds | Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 438,408 | 1,470
Money market funds | Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Money market funds | Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
U.S. government | Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 140,758 | 238,747
Gross Unrealized Gains | 23 | 120
Gross Unrealized Losses | (5) | (237)
Fair Value | 140,776 | 238,630
U.S. government | Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
U.S. government | Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
U.S. government | Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 140,776 | 238,630
Marketable securities | Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 90,000 | 90,000
Gross Unrealized Gains | 61,560 | 0
Gross Unrealized Losses | 0 | (12,060)
Fair Value | 151,560 | 77,940
Marketable securities | Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Marketable securities | Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 151,560 | 77,940
Marketable securities | Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Treasury bills | Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 117,880 | 148,063
Gross Unrealized Gains | 19 | 28
Gross Unrealized Losses | (2) | 0
Fair Value | 117,897 | 148,091
Treasury bills | Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 48,513 | 88,697
Treasury bills | Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Treasury bills | Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 69,384 | 59,394
Agency bonds | Level 1 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 104,780 | 222,057
Gross Unrealized Gains | 0 | 2
Gross Unrealized Losses | (13) | (174)
Fair Value | 104,767 | 221,885
Agency bonds | Level 1 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 104,767 | 101,635
Agency bonds | Level 1 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Agency bonds | Level 1 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 120,250
Term deposits | Level 2 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost | 119,610 | 128,205
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 119,610 | 128,205
Term deposits | Level 2 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 18,200 | 0
Term deposits | Level 2 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | 0 | 0
Term deposits | Level 2 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value | $ 101,410 | 128,205
Corporate bonds | Level 2 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost |  | 80,646
Gross Unrealized Gains |  | 8
Gross Unrealized Losses |  | (165)
Fair Value |  | 80,489
Corporate bonds | Level 2 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Corporate bonds | Level 2 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Corporate bonds | Level 2 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 80,489
Treasury inflation-protected securities | Level 2 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost |  | 2,635
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | (5)
Fair Value |  | 2,630
Treasury inflation-protected securities | Level 2 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Treasury inflation-protected securities | Level 2 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Treasury inflation-protected securities | Level 2 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 2,630
Commercial paper | Level 2 |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Amortized Cost |  | 14,456
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | 0
Fair Value |  | 14,456
Commercial paper | Level 2 | Cash and Cash Equivalents |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Commercial paper | Level 2 | Marketable Securities |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | 0
Commercial paper | Level 2 | Short-Term Investments |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |
Fair Value |  | $ 14,456

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