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v3.23.1

Fair Value Measurements (Financial Instruments Level within the Fair Value Hierarchy) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Mar. 31, 2022
--- | --- | ---
Assets: |  |
Short-term investments | $ 1,809,441 | $ 2,482,154
Fixed maturities - available for sale | 2,709,037 | 2,821,092
Preferred stock | 21,982 | 26,095
Common stock | 39,375 | 46,212
Derivatives | 9,606 | 7,474
Total | 4,589,441 | 5,383,027
Liabilities: |  |
Derivatives | 0 | 587
Total | 0 | 587
Level 1 [Member] |  |
Assets: |  |
Short-term investments | 1,808,797 | 2,482,154
Fixed maturities - available for sale | 251,832 | 26,914
Preferred stock | 21,982 | 26,095
Common stock | 39,375 | 46,212
Derivatives | 4,295 | 7,474
Total | 2,126,281 | 2,588,849
Liabilities: |  |
Derivatives | 0 | 0
Total | 0 | 0
Level 2 [Member] |  |
Assets: |  |
Short-term investments | 644 | 0
Fixed maturities - available for sale | 2,457,146 | 2,794,086
Preferred stock | 0 | 0
Common stock | 0 | 0
Derivatives | 5,311 | 0
Total | 2,463,101 | 2,794,086
Liabilities: |  |
Derivatives | 0 | 587
Total | 0 | 587
Level 3 [Member] |  |
Assets: |  |
Short-term investments | 0 | 0
Fixed maturities - available for sale | 59 | 92
Preferred stock | 0 | 0
Common stock | 0 | 0
Derivatives | 0 | 0
Total | 59 | 92
Liabilities: |  |
Derivatives | 0 | 0
Total | $ 0 | $ 0

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