Investments - Equity Method Investments (Details) - USD ($) $ in Thousands |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Schedule of Equity Method Investments [Line Items] | ||
| Carrying Value | $ 93,317 | $ 83,742 |
| % of Total | 100.00% | 100.00% |
| Unfunded commitments | $ 67,278 | $ 68,262 |
| Real estate investments | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Carrying Value | $ 52,210 | $ 44,050 |
| % of Total | 56.00% | 52.60% |
| Hedge fund investments | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Carrying Value | $ 32,861 | $ 32,929 |
| % of Total | 35.20% | 39.30% |
| Other investments | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Carrying Value | $ 8,246 | $ 6,763 |
| % of Total | 8.80% | 8.10% |
| Unfunded commitments | $ 67,278 | $ 68,262 |
| Equity Method Investments | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Unfunded commitments | $ 17,790 | $ 25,950 |