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Reinsurance - Excess of Loss Reinsurance (Details) - USD ($) $ in Thousands |  |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 02, 2021 | Oct. 29, 2020 | May 25, 2019 | Oct. 30, 2018 | Mar. 31, 2021 | Dec. 31, 2020
Home Re 2021-1 |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |
Remaining First Layer Retention | $ 211,159 |  |  |  | $ 211,159 | $ 0
Remaining Excess of Loss Reinsurance Coverage | $ 398,848 |  |  |  | 398,848 | 0
Home Re 2020-1 |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |
Remaining First Layer Retention |  | $ 275,283 |  |  | 275,268 | 275,283
Remaining Excess of Loss Reinsurance Coverage |  | $ 412,917 |  |  | 412,917 | 412,917
Home Re 2019-1 |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |
Remaining First Layer Retention |  |  | $ 185,730 |  | 184,391 | 184,514
Remaining Excess of Loss Reinsurance Coverage |  |  | $ 315,739 |  | 208,146 | 208,146
Home Re 2018-1 |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |
Remaining First Layer Retention |  |  |  | $ 168,691 | 165,765 | 166,005
Remaining Excess of Loss Reinsurance Coverage |  |  |  | $ 318,636 | $ 218,343 | $ 218,343

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- Definition Reinsurance Retention Policy, Remaining Excess of Loss Reinsurance Coverages + 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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- Definition Stated amount that is the upper retention limit per entity policy. + References No definition available. + Details
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