Cash, Cash Equivalents and Investments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Abstract]
Debt securities, available-for-sale, unrealized loss position	$ 136.7	$ 420.4
Securities in unrealized loss position for 12 months or longer		138.8
Continuous unrealized loss position of available-for-sale investments, gross unrealized losses		0.3
Marketable securities, unrealized gain (loss)	$ 120.3	$ 38.7	$ (32.9)