Marketable Securities and Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Investment income	$ 3,800,000	$ 4,600,000	$ 11,700,000	$ 14,900,000
Allowances for credit losses	0		0		$ 0
Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Investment income	2,300,000	3,100,000	8,000,000	10,300,000
Cash and Cash Equivalents
Debt Securities, Available-for-Sale [Line Items]
Investment income	$ 1,500,000	$ 1,500,000	$ 3,700,000	$ 4,600,000