v3.26.3
FAIR VALUE - Schedule of Net Unrealized Gains (Losses), and Fair Value by Major Security Type for Our Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash $ 240,707 $ 155,840
Gross Unrealized Gains 2 435
Gross Unrealized Losses (1,426) (19)
Amortized Cost 1,241,914 1,118,326
Fair Value 1,482,597 1,275,982
Short-term investments 134,294 104,078
Cash and cash equivalents 1,239,607 1,036,389
Long-Term Investments 110,120 135,098
Level 1    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Gross Unrealized Gains 0 0
Gross Unrealized Losses (31) 0
Amortized Cost 1,010,489 882,874
Fair Value 1,010,458 882,874
Level 1 | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash Equivalents 998,900 880,549
Level 1 | Balance Sheet Location [Axis]: us-gaap:DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossCurrent    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Short-term investments 11,589 2,324
Level 2    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Amortized Cost 231,425 235,452
Gross Unrealized Gains 2 435
Gross Unrealized Losses (1,395) (19)
Fair Value 230,032 235,868
Short-term investments 122,705 101,754
Long-Term Investments 108,720 133,698
Level 2 | Asset-backed securities    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Amortized Cost 27,084 26,794
Gross Unrealized Gains 0 44
Gross Unrealized Losses (59) 0
Fair Value 27,025 26,838
Short-term investments 0 347
Long-Term Investments 27,084 26,447
Level 2 | Corporate debt securities    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Amortized Cost 166,619 182,417
Gross Unrealized Gains 2 237
Gross Unrealized Losses (901) (19)
Fair Value 165,720 182,635
Short-term investments 105,527 93,997
Long-Term Investments 61,092 88,420
Level 2 | U.S. Treasury securities    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Amortized Cost 37,722 26,241
Gross Unrealized Gains 0 154
Gross Unrealized Losses (435) 0
Fair Value 37,287 26,395
Short-term investments 17,178 7,410
Long-Term Investments 20,544 18,831
Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Investment in SAFE 1,400 1,400
Commercial paper | Level 1    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Amortized Cost 11,589 4,318
Fair Value 11,558 4,318
Commercial paper | Level 1 | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash Equivalents 0 1,993
Commercial paper | Level 1 | Balance Sheet Location [Axis]: us-gaap:DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossCurrent    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Short-term investments 11,589 2,324
Money market funds | Level 1    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash Equivalents 998,900 878,556
Money market funds | Level 1 | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash Equivalents $ 998,900 $ 878,556