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Policyholders' Liabilities - Guaranteed Minimum Crediting Rate (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 207,702 | $ 196,069
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 36,816 | $ 40,496
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 | Minimum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 0.00% | 0.00%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 | Maximum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 1.49% | 1.49%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 33,793 | $ 24,837
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 | Minimum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 1.50% | 1.50%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 | Maximum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 2.99% | 2.99%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 105,693 | $ 98,911
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 | Minimum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 3.00% | 3.00%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 | Maximum [Member] |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 4.49% | 4.49%
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 31,400 | $ 31,825
Policyholder Account Balance, Guaranteed Minimum Credit Rating | 4.50% | 4.50%
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 170,941 | $ 155,618
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 784 | 736
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 33,073 | 24,155
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 105,684 | 98,902
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 31,400 | 31,825
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 680 | 640
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 671 | 631
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 9 | 9
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 1,195 | 1,140
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 1,146 | 1,089
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 49 | 51
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 34,886 | 38,671
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0000 To 0149 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 34,886 | 38,671
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0150 To 0299 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From 0300 To 0449 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | 0 | 0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range From Greater Than Or Equal To 0450 |  |
Policyholder Account Balance [Line Items] |  |
Policyholder Account Balance | $ 0 | $ 0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
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- Definition Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(14)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
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