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v3.22.2

Investments - Additional Information (Details) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2022 USD ($) Security | Dec. 31, 2021 USD ($) Security
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Debt Securities | $ 33.0 | $ 38.3
Number of securities in unrealized loss position | Security | 34 | 23
Proceeds from sale of investment in fixed maturity securities and maturing time deposits | $ 3.6 |
Investments on deposit with the state insurance department | 4.1 |
U.S. Treasury securities, obligations of U.S. Government agencies and municipalities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Debt Securities | 25.1 | $ 30.0
U.S. Treasury securities, obligations of U.S. Government agencies and municipalities | Short-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Debt Securities | 9.3 | 7.4
U.S. Treasury securities, obligations of U.S. Government agencies and municipalities | Bank Time Deposits |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Debt Securities | 5.6 | 5.5
Corporate Debt Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale Debt Securities | $ 7.9 | $ 8.3

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