Investments - Short-term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Marketable Securities [Line Items]
Adjusted Cost	$ 528,996	$ 348,392
Unrealized Gains	205	484
Unrealized Losses	(592)	0
Fair Value	528,609	348,876
Schedule of Held-to-Maturity Securities [Line Items]
Adjusted Cost		350,324
Unrealized Gains		942
Unrealized Losses		(3)
Fair Value	0	351,263
Government and government agency
Marketable Securities [Line Items]
Adjusted Cost	416,425	180,111
Unrealized Gains	200	426
Unrealized Losses	(379)	0
Fair Value	416,246	180,537
Schedule of Held-to-Maturity Securities [Line Items]
Adjusted Cost		270,457
Unrealized Gains		718
Unrealized Losses		0
Fair Value		271,175
Corporate bonds
Marketable Securities [Line Items]
Adjusted Cost	112,571	158,471
Unrealized Gains	5	53
Unrealized Losses	(213)	0
Fair Value	$ 112,363	158,524
Schedule of Held-to-Maturity Securities [Line Items]
Adjusted Cost		79,867
Unrealized Gains		224
Unrealized Losses		(3)
Fair Value		80,088
U.S. Treasury bills
Marketable Securities [Line Items]
Adjusted Cost		9,810
Unrealized Gains		5
Unrealized Losses		0
Fair Value		$ 9,815

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