Fair Value Measurements - Investments in Unrealized Loss Position (Details) $ in Millions |
Dec. 31, 2022
USD ($)
security
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Dec. 31, 2021
USD ($)
security
|
|---|---|---|
| Investments | ||
| Estimated Fair Value | ||
| Assets with a loss shorter than 12 months | $ 4.0 | $ 7.0 |
| Securities with a loss longer than 12 months | 6.0 | 0.0 |
| Unrealized Losses | ||
| Assets with a loss shorter than 12 months | 0.7 | 0.1 |
| Securities with a loss longer than 12 months | $ 1.2 | $ 0.0 |
| Count of Securities | ||
| Securities with a loss shorter than 12 months | security | 4 | 1 |
| Securities with a loss longer than 12 months | security | 1 | 0 |
| Securitization residual assets | ||
| Estimated Fair Value | ||
| Assets with a loss shorter than 12 months | $ 118.0 | $ 51.0 |
| Securities with a loss longer than 12 months | 51.0 | 17.0 |
| Unrealized Losses | ||
| Assets with a loss shorter than 12 months | 27.0 | 1.0 |
| Securities with a loss longer than 12 months | $ 22.0 | $ 1.0 |
| Count of Securities | ||
| Securities with a loss shorter than 12 months | security | 66 | 12 |
| Securities with a loss longer than 12 months | security | 12 | 3 |
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- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract] No definition available.
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- References No definition available.
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- References No definition available.
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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 continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated unrealized loss on 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 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated unrealized loss on 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of investments in debt securities 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 an allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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