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Fair value disclosures (Policies) | 9 Months Ended
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Sep. 30, 2022
Fair Value Disclosures [Abstract] |
Fair value measurements | The Company measures its investments in certain fixed-income and equity securities at fair value with changes in fair value recognized in income.
Investments | The Company did not elect the fair value option, which records gains and losses in income, for its available-for-sale securities, which include mortgage-backed securities and U.S. Treasury securities. These available-for-sale securities are recorded at fair value and are classified as investments on the Consolidated Balance Sheets.

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