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Securities - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2013 | Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Available-for-sale securities transferred to held-to-maturity securities |  |  | $ 12,700 | $ 536,000 |
Unrealized net loss |  |  | $ 209 | $ 13,300 |
Debt securities, available-for-sale, realized losses | $ 697 | $ 87 |  |  |
Equity investments | 101,007 |  |  |  | $ 102,037
Corporate debt securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 60,400 |  |  |  |
Fair value | 56,100 |  |  |  |
State, municipal and sovereign debt obligations |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 80,300 |  |  |  |
Fair value | 76,700 |  |  |  |
Asset-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized cost | 296,200 |  |  |  |
Fair value | $ 281,800 |  |  |  |

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- Definition Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred From Available For Sale Securities Before Tax + References No definition available. + Details
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- Definition Amortized cost, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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