Marketable Securities - Schedule of Company's investing portfolio (Details) - Marketable securities - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Marketable Securities
COST	$ 573,445	$ 588,365
UNREALIZED GAINS	1,206	1,412
UNREALIZED LOSSES	(132)	(497)
FAIR VALUE	574,519	589,280
Maturities within one year
Marketable Securities
COST	405,813	378,096
UNREALIZED GAINS	646	833
UNREALIZED LOSSES	(46)	(65)
FAIR VALUE	406,413	378,864
Maturities between one and two years
Marketable Securities
COST	167,632	210,269
UNREALIZED GAINS	560	579
UNREALIZED LOSSES	(86)	(432)
FAIR VALUE	168,106	210,416
U.S. Treasury Securities | Maturities within one year
Marketable Securities
COST	176,927	158,332
UNREALIZED GAINS	395	469
UNREALIZED LOSSES	(24)	(34)
FAIR VALUE	177,298	158,767
U.S. Treasury Securities | Maturities between one and two years
Marketable Securities
COST	79,792	90,330
UNREALIZED GAINS	140	109
UNREALIZED LOSSES	(49)	(271)
FAIR VALUE	79,883	90,168
Debt securities issued by U.S. government agencies | Maturities within one year
Marketable Securities
COST	101,911	115,425
UNREALIZED GAINS	163	169
UNREALIZED LOSSES	(12)	0
FAIR VALUE	102,062	115,594
Debt securities issued by U.S. government agencies | Maturities between one and two years
Marketable Securities
COST	61,797	102,707
UNREALIZED GAINS	405	470
UNREALIZED LOSSES	0	(75)
FAIR VALUE	62,202	103,102
Commercial paper | Maturities within one year
Marketable Securities
COST	34,178	35,508
UNREALIZED GAINS	5	49
UNREALIZED LOSSES	(2)	0
FAIR VALUE	34,181	35,557
Corporate Debt Securities | Maturities within one year
Marketable Securities
COST	92,797	68,831
UNREALIZED GAINS	83	146
UNREALIZED LOSSES	(8)	(31)
FAIR VALUE	92,872	68,946
Corporate Debt Securities | Maturities between one and two years
Marketable Securities
COST	26,043	17,232
UNREALIZED GAINS	15	0
UNREALIZED LOSSES	(37)	(86)
FAIR VALUE	$ 26,021	$ 17,146