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Basis of Presentation and Significant Accounting Policies - Guaranteed Minimum Death Benefit (Details) - Guarantee Minimum Death Benefit - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Net Amount at Risk by Product and Guarantee [Line Items] |  |
GMDB reserve | $ 77 | $ 126
Aggregate in-the-money death benefits under the GMDB provision | $ 26,710 | $ 29,367
Variable annuity contract value distribution based on GMDB feature: |  |
No guarantee | 26.00% | 28.00%
Return of premium guarantee | 69.00% | 67.00%
Guarantee of premium roll-up at an annual rate of 3% or 5% | 5.00% | 5.00%
Total | 100.00% | 100.00%
Minimum |  |
Variable annuity contract value distribution based on GMDB feature: |  |
Guarantee of premium roll-up at an annual rate of 3% or 5% | 3.00% |
Maximum |  |
Variable annuity contract value distribution based on GMDB feature: |  |
Guarantee of premium roll-up at an annual rate of 3% or 5% | 5.00% |

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- Definition Aggregate in money death benefits under guaranteed minimum death benefit reserve provision. + References No definition available. + Details
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- Definition Guaranteed minimum death benefit reserve. + References No definition available. + Details
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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 No definition available. + Details
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