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Investments (Other Investment Portfolio by Strategy and the Remaining Commitment Amount Associated With Each Strategy) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Carrying Value |  | $ 266,322 | $ 216,807
Private Equity [Member] |  |  |
Carrying Value |  | 157,276 | 118,352
Remaining Commitment |  | 100,905 | 93,138
Maximum Exposure to Loss | [1] | 258,181 | 211,490
Private Credit Funds [Member] |  |  |
Carrying Value |  | 54,017 | 42,532
Remaining Commitment |  | 98,330 | 105,340
Maximum Exposure to Loss | [1] | 152,347 | 147,872
Real Assets [Member] |  |  |
Carrying Value |  | 19,659 | 23,256
Remaining Commitment |  | 16,493 | 20,741
Maximum Exposure to Loss | [1] | 36,152 | 43,997
Alternative Investments [Member] |  |  |
Carrying Value |  | 230,952 | 184,140
Remaining Commitment |  | 215,728 | 219,219
Maximum Exposure to Loss | [1] | 446,680 | 403,359
Other Securities [Member] |  |  |
Carrying Value |  | 35,370 | 32,667
Remaining Commitment |  | 0 | 0
Maximum Exposure to Loss | [1] | 35,370 | 32,667
Other Investment Portfolio [Member] |  |  |
Carrying Value |  | 266,322 | 216,807
Remaining Commitment |  | 215,728 | 219,219
Maximum Exposure to Loss | [1] | $ 482,050 | $ 436,026
[1] | In addition to the amounts in this table, previously recognized tax credits are subject to the risk of recapture. We do not consider this significant and therefore do not include in this table.

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