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v3.21.1

Fair Value Measurements (Financial Instruments Level within the Fair Value Hierarchy) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Assets: |  |
Short-term investments | $ 839,250 | $ 369,279
Fixed maturities - available for sale | 2,653,539 | 2,466,048
Preferred stock | 21,677 | 6,675
Common stock | 20,440 | 20,015
Derivatives | 6,601 | 5,944
Total | 3,541,507 | 2,867,961
Liabilities: |  |
Derivatives | 5,141 | 8,214
Total | 5,141 | 8,214
Level 1 [Member] |  |
Assets: |  |
Short-term investments | 839,250 | 368,968
Fixed maturities - available for sale | 6,967 | 7,156
Preferred stock | 21,677 | 6,675
Common stock | 20,440 | 20,015
Derivatives | 6,601 | 5,944
Total | 894,935 | 408,758
Liabilities: |  |
Derivatives | 0 | 0
Total | 0 | 0
Level 2 [Member] |  |
Assets: |  |
Short-term investments | 0 | 311
Fixed maturities - available for sale | 2,646,415 | 2,458,731
Preferred stock | 0 | 0
Common stock | 0 | 0
Derivatives | 0 | 0
Total | 2,646,415 | 2,459,042
Liabilities: |  |
Derivatives | 5,141 | 8,214
Total | 5,141 | 8,214
Level 3 [Member] |  |
Assets: |  |
Short-term investments | 0 | 0
Fixed maturities - available for sale | 157 | 161
Preferred stock | 0 | 0
Common stock | 0 | 0
Derivatives | 0 | 0
Total | 157 | 161
Liabilities: |  |
Derivatives | 0 | 0
Total | $ 0 | $ 0

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