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Marketable Securities - Summary of Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Marketable Securities [Line Items] |  |
Amortized Cost | $ 864,285 | $ 732,131
Unrealized Gains | 1,752 | 652
Unrealized Losses | (250) | (2,136)
Fair Value | 865,787 | 730,647
US Treasury Securities |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 188,647 | 158,518
Unrealized Gains | 479 | 190
Unrealized Losses | (28) | (244)
Fair Value | 189,098 | 158,464
US Government Agencies |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 222,856 | 179,030
Unrealized Gains | 181 | 33
Unrealized Losses | (145) | (1,248)
Fair Value | 222,892 | 177,815
Commercial Paper |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 10,683 | 15,847
Unrealized Gains | 1 | 5
Unrealized Losses | 0 |
Fair Value | 10,684 | 15,852
Corporate Securities |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 442,099 | 378,736
Unrealized Gains | 1,091 | 424
Unrealized Losses | (77) | (644)
Fair Value | $ 443,113 | $ 378,516

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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