Fair Value Measurements and Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Investments in fair market value, unrealized loss position	$ 1,800.0	$ 300.0
Investments in fair market value, continuous unrealized loss position for more than 12 months	426.9	120.2
Investments in fair market value, continuous unrealized loss position	8.0	$ 0.0
Investments in fair market value, continuous unrealized loss position, less than 12 months	7.4
Level 3
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Fair value assets transferred into level 3	$ 0.0

Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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