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Policyholder Liabilities (Reconciliation of Market Risk Benefits in an Asset Position and in a Liability Position) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Market Risk Benefit [Line Items] |  |  |  |
Market risk benefits | $ 479,694 | $ 229,871 | [1] |
MRB liability balance | 3,146,554 | 2,455,492 | [1] |
Net liability | 2,666,860 | 2,225,621 |  |
Fixed Index Annuities |  |  |  |
Market Risk Benefit [Line Items] |  |  |  |
Market risk benefits | 477,306 | 226,294 |  |
MRB liability balance | 3,083,979 | 2,414,052 |  |
Net liability | 2,606,673 | 2,187,758 |  | $ 2,557,378
Fixed Rate Annuities |  |  |  |
Market Risk Benefit [Line Items] |  |  |  |
Market risk benefits | 2,388 | 3,577 |  |
MRB liability balance | 62,575 | 41,440 |  |
Net liability | $ 60,187 | $ 37,863 |  | $ 78,411
[1] | Certain prior period amounts have been recast. See Note 1 - Significant Accounting Policies for more information.

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- Definition Amount, before effect of reinsurance and after accumulated increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480112/944-40-45-3 + Details
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- Definition Amount of asset position for contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B + Details
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