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Schedule V - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Valuation Allowance on Mortgage Loans |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |
Beginning balance |  | $ (17,779) | [1] | $ (8,239) | $ (7,518)
Charged to costs and expenses |  | (15,447) | [1] | (940) | (3,165)
Translation adjustment |  | 0 | [1] | 0 | 0
Write-offs/payments/other |  | 2,197 | [1] | 0 | 2,444
Ending balance |  | (31,029) | [1] | $ (9,179) | $ (8,239)
Valuation Allowance on Available For Sale Fixed Maturity Securities |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |
Beginning balance | [1] | 0 |  |  |
Charged to costs and expenses | [1] | (94,560) |  |  |
Translation adjustment | [1] | 0 |  |  |
Write-offs/payments/other | [1] | 29,789 |  |  |
Ending balance | [1] | (64,771) |  |  |
Valuation Allowance on Coinsurance Deposits |  |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |  |
Beginning balance | [1] | (3,238) |  |  |
Charged to costs and expenses | [1] | 1,350 |  |  |
Translation adjustment | [1] | 0 |  |  |
Write-offs/payments/other | [1] | 0 |  |  |
Ending balance | [1] | $ (1,888) |  |  |
[1] | (1) Upon adoption of authoritative guidance effective January 1, 2020, we updated our accounting policies and methodology for calculating the valuation allowance on mortgage loans, available for sale fixed maturity securities and coinsurance deposits, resulting in an adjustment to the valuation allowances. See Note 1 - Significant Accounting Policies for further details.

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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