Investments - Net Investment Income (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Schedule of Investments [Line Items] | ||||
| Investment income | $ 8,083 | $ 14,663 | $ 18,268 | $ 33,028 |
| Investment expenses | (805) | (354) | (1,149) | (755) |
| Net investment income | 7,278 | 14,309 | 17,119 | 32,273 |
| Fixed maturities | ||||
| Schedule of Investments [Line Items] | ||||
| Investment income | 4,395 | 9,635 | 11,086 | 22,286 |
| Income on funds withheld | ||||
| Schedule of Investments [Line Items] | ||||
| Investment income | 2,715 | 4,009 | 5,220 | 7,862 |
| Interest income from loan to related party | ||||
| Schedule of Investments [Line Items] | ||||
| Investment income | 866 | 860 | 1,726 | 2,225 |
| Cash and cash equivalents and other investments | ||||
| Schedule of Investments [Line Items] | ||||
| Investment income | $ 107 | $ 159 | $ 236 | $ 655 |