Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows used in operating activities:
Net loss	$ (52,342)	$ (46,077)
Adjustments to reconcile net loss to cash used in operating activities:
Stock-based compensation expense	10,499	12,596
Depreciation and amortization expense	1,071	896
Reduction in carrying amount of right-of-use asset	3,317	3,176
Net accretion of discounts on marketable securities	(1,364)	(2,930)
Other	48	22
Changes in operating assets and liabilities:
Accounts receivable	901	10,632
Prepaid expenses and other current and long-term assets	3,974	(5,116)
Accounts payable	889	(533)
Accrued expenses and other current liabilities	(6,103)	(9,414)
Operating lease liability	(2,833)	(2,560)
Deferred revenue	(3,399)	16,216
Net cash used in operating activities	(45,342)	(23,092)
Cash flows provided by (used in) investing activities:
Proceeds from maturities of marketable securities	115,551	110,067
Purchases of marketable securities	(47,320)	(174,972)
Purchases of property and equipment, net	(185)	(197)
Net cash provided by (used in) investing activities	68,046	(65,102)
Cash flows provided by (used in) financing activities:
Proceeds from exercise of stock options	0	654
Payments for repurchase of common stock for tax withholding	(155)	(109)
Other	109	84
Net cash (used in) provided by financing activities	(46)	34,718
Net change in cash, cash equivalents and restricted cash	22,658	(53,476)
Cash, cash equivalents and restricted cash at beginning of period	58,942	130,033
Cash, cash equivalents and restricted cash at end of period	81,600	76,557
Reconciliation of cash, cash equivalents and restricted cash:
Cash, cash equivalents and restricted cash at end of period	81,600	76,557
Less: restricted cash	(3,443)	(3,443)
Cash and cash equivalents at end of the period	78,157	73,114
Supplemental disclosures of cash flow information:
Cash paid for leases	4,666	4,399
Supplemental disclosures of non-cash investing activities:
Capital expenditures in accounts payable and accrued expenses	294	13
At-The-Market
Cash flows provided by (used in) financing activities:
Proceeds from issuance of common stock	0	14,089
Stock Purchase Agreement
Cash flows provided by (used in) financing activities:
Proceeds from issuance of common stock	$ 0	$ 20,000