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Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
OPERATING ACTIVITIES:    
Net loss $ (95,159) $ (114,985)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 10,236 10,712
Operating lease costs 7,870 7,619
Gain on extinguishment of convertible notes (13,672) 0
Stock-based compensation 37,757 27,041
Unrealized losses on marketable equity securities 0 30,054
Impairment of non-marketable equity securities 5,000 0
Interest income received on marketable debt securities 7,677 0
Other 940 1,408
Changes in operating assets and liabilities:    
Accounts receivable, net (6,115) 4,220
Inventory, net (6,173) (1,042)
Prepaid expenses and other current assets, net (3,072) (5,627)
Other assets, net 697 1,024
Accounts payable and accrued liabilities (1,537) 13,240
Operating lease liabilities (9,565) (8,835)
Deferred revenue 2,427 4,887
Net cash used in operating activities (62,689) (30,284)
INVESTING ACTIVITIES:    
Maturities of marketable debt securities 307,323 35,000
Purchases of property and equipment (4,459) (6,934)
Net cash provided by investing activities 302,864 28,066
FINANCING ACTIVITIES:    
Proceeds from issuance of common stock upon exercise of stock options 768 213
Employee taxes paid related to settlement of restricted stock units (15,497) (1,544)
Repurchase of treasury stock (45,010) 0
Payment of debt issuance costs (12,138) 0
Proceeds from unwinding of convertible note hedges 5,030 0
Other (3) 257
Net cash used in financing activities (66,850) (1,074)
Net effect of foreign exchange rate changes on cash, cash equivalents and restricted cash 773 (1,138)
Net increase (decrease) in cash, cash equivalents and restricted cash 174,098 (4,430)
Cash, cash equivalents and restricted cash—Beginning of period 629,755 1,133,687
Cash, cash equivalents and restricted cash—End of period 803,853 1,129,257
Reconciliation of cash, cash equivalents and restricted cash:    
Cash and cash equivalents 698,572 1,029,027
Restricted cash 105,281 100,230
Total cash, cash equivalents and restricted cash $ 803,853 $ 1,129,257