CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities
Net income (loss)	$ (150,045)	$ (244,943)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	18,324	39,847
Stock-based compensation expense	56,639	13,666
Non-cash operating lease expense	4,323	4,224
Amortization of debt discounts	12,163	5,148
Changes in fair value of financial instruments	52,284	(6,068)
Loss on debt extinguishment	17,930	0
Other	788	3,947
Changes in operating assets and liabilities:
Accounts receivable	61,232	(15,009)
Supplies	(11,144)	4,211
Prepaid expenses and other current assets	(4,805)	(2,176)
Other assets	(326)	(158)
Accounts payable	(1,196)	5,054
Accrued expenses and other liabilities	(17,792)	(14,021)
Net cash provided by (used in) operating activities	38,375	(206,278)
Cash flows from investing activities
Maturities of marketable securities	0	61,376
Purchases of property and equipment	(11,170)	(6,154)
Net cash provided by (used in) investing activities	(11,170)	55,222
Cash flows from financing activities
Payments made on finance lease obligations	(67)	(136)
Proceeds from exercise of stock options	3,775	1,258
Payment of taxes withheld from net settlement of exercised options and vested RSUs	(18,218)	0
Payment of deferred offering costs	(7,710)	(1,034)
Proceeds from the 2023 term loan, net of issuance costs	0	199,978
Purchase of treasury stock	(22)	0
Issuance of the 2025 Convertible Notes, net of issuance costs	27,865	0
Issuance of the 2025 Warrants	10,270	0
Payments of 2023 term loan amendment fee	(4,000)	0
Proceeds from initial public offering, net of underwriting discounts and commissions	528,459	0
Net cash provided by financing activities	661,590	200,066
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	159	(3)
Net increase in cash, cash equivalents, and restricted cash	688,954	49,007
Cash, cash equivalents, and restricted cash at beginning of period	68,028	60,007
Cash, cash equivalents, and restricted cash at end of period	756,982	109,014
Series E Preferred Stock
Cash flows from financing activities
Proceeds from issuance of preferred stock, net of issuance costs	87,637	0
Series F Preferred Stock
Cash flows from financing activities
Proceeds from issuance of preferred stock, net of issuance costs	$ 33,601	$ 0