Financial Instruments - Unrealized Gains and Losses (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
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| Fair Value Disclosures [Abstract] | ||
| Unrealized gross gains | $ 3.8 | $ 1.6 |
| Unrealized gross losses | 32.2 | 43.2 |
| Fair value of securities in an unrealized gain position | 236.4 | 142.6 |
| Fair value of securities in an unrealized loss position | $ 396.8 | $ 491.2 |
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- Definition Debt Securities, Available-For-Sale, Unrealized Gain Position No definition available.
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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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