Recurring Fair Value Measurement - Schedule of cash equivalents, marketable securities, and unrealized gains and losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Line Items]
Cash equivalents, amortized cost	$ 33,358	$ 124,968
Marketable securities
Cash and Cash Equivalents [Line Items]
Debt securities, available-for-sale, amortized cost	439,715	406,667
Debt securities, available-for-sale, unrealized gain	7	98
Debt securities, available-for-sale, unrealized loss	(60)	(13)
Debt securities, available-for-sale, estimated fair value	439,662	406,752
Cash equivalents
Cash and Cash Equivalents [Line Items]
Cash equivalents, amortized cost	12,146	104,838
Cash equivalents, unrealized gains	0	0
Cash equivalents, unrealized losses	0	0
Cash and cash equivalents, fair value disclosure	12,146	104,838
Money market funds
Cash and Cash Equivalents [Line Items]
Cash equivalents, amortized cost	12,146	16,728
Cash equivalents, unrealized gains	0	0
Cash equivalents, unrealized losses	0	0
Cash and cash equivalents, fair value disclosure	12,146	16,728
U.S. government agency securities
Cash and Cash Equivalents [Line Items]
Cash equivalents, amortized cost		75,163
Cash equivalents, unrealized gains		0
Cash equivalents, unrealized losses		0
Cash and cash equivalents, fair value disclosure		75,163
Debt securities, available-for-sale, amortized cost	94,297	108,210
Debt securities, available-for-sale, unrealized gain	0	13
Debt securities, available-for-sale, unrealized loss	(12)	(11)
Debt securities, available-for-sale, estimated fair value	94,285	108,212
U.S. treasury securities
Cash and Cash Equivalents [Line Items]
Cash equivalents, amortized cost		12,947
Cash equivalents, unrealized gains		0
Cash equivalents, unrealized losses		0
Cash and cash equivalents, fair value disclosure		12,947
Debt securities, available-for-sale, amortized cost	345,418	298,457
Debt securities, available-for-sale, unrealized gain	7	85
Debt securities, available-for-sale, unrealized loss	(48)	(2)
Debt securities, available-for-sale, estimated fair value	$ 345,377	$ 298,540