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Investments - Net Gains (Losses) on Investments (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Gain (Loss) on Securities [Line Items] |  |
Mortgage loans held for sale | $ 1 | $ 0
Net realized gains (losses) on investments sold or redeemed | (5,505) | (323)
Change in unrealized gains (losses) on investments sold or redeemed | 439 | (1,949)
Net unrealized gains (losses) on investments still held | 5,571 | (17,681)
Increase (Decrease) in Mortgage Loans Held-for-sale | 86 | 0
Total net gains (losses) on investments | 505 | (19,953)
Net gains (losses) on other financial instruments (1) | 5,080 | (9,504)
Net gains (losses) on investments and other financial instruments | 5,585 | (29,457)
Fixed-maturities available for sale |  |
Gain (Loss) on Securities [Line Items] |  |
Gross realized gains | 78 | 1,430
Gross realized losses | (5,310) | (3,408)
Fixed-maturities available for sale, net | (5,232) | (1,978)
Trading securities |  |
Gain (Loss) on Securities [Line Items] |  |
Net realized gains (losses) on investments sold or redeemed | (302) | 0
Net unrealized gains (losses) on investments still held | 2,078 | (13,033)
Equity securities |  |
Gain (Loss) on Securities [Line Items] |  |
Net realized gains (losses) on investments sold or redeemed | 0 | 1,655
Net unrealized gains (losses) on investments still held | 3,444 | (4,385)
Other investments |  |
Gain (Loss) on Securities [Line Items] |  |
Net realized gains (losses) on investments sold or redeemed | 28 | 0
Net unrealized gains (losses) on investments still held | $ (37) | $ (263)

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- Definition Amount of realized gain on 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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Definition Amount of realized gain (loss) on 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 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123605502&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123605502&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123605549&loc=d3e21493-158490 + Details
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- Definition The increase (decrease) during the reporting period in the value of mortgage loans that are held with the intention to sell or be securitized in the near future. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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