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v3.23.2

Accounting Pronouncements (Effects of Adoption of ASU 2018-12 Statement Of Operations) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Statements Adjusted [Abstract] |  |
Benefits and losses | $ 45,344 | $ 39,757
Amortization of deferred policy acquisition costs | 8,045 | 7,672
Pretax earnings | 338,695 | 445,399
Net earnings available to common shareholders | 256,838 | 338,345
Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Net earnings available to common shareholders | $ 0 | $ 0
Basic and diluted earnings per share Common Stock | $ 1.27 | $ 2.18
Nonvoting Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Net earnings available to common shareholders | $ 0 | $ 0
Basic and diluted earnings per share Common Stock | $ 1.31 | $ 1.68
Operating Segments [Member] | Life Insurance [Member] |  |
Statements Adjusted [Abstract] |  |
Benefits and losses | $ 40,886 | $ 35,378
Amortization of deferred policy acquisition costs | 8,045 | 7,672
Pretax earnings | 1,236 | 5,796
Net earnings available to common shareholders | $ 720 | 5,413
Previously Reported |  |
Statements Adjusted [Abstract] |  |
Benefits and losses |  | 44,100
Pretax earnings |  | 441,056
Net earnings available to common shareholders |  | $ 334,002
Previously Reported | Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Basic and diluted earnings per share Common Stock |  | $ 2.15
Previously Reported | Nonvoting Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Basic and diluted earnings per share Common Stock |  | $ 1.65
Effect of adoption |  |
Statements Adjusted [Abstract] |  |
Benefits and losses |  | $ (4,343)
Pretax earnings |  | 4,343
Net earnings available to common shareholders |  | $ 4,343
Effect of adoption | Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Basic and diluted earnings per share Common Stock |  | $ 0.03
Effect of adoption | Nonvoting Common Stock [Member] |  |
Statements Adjusted [Abstract] |  |
Basic and diluted earnings per share Common Stock |  | $ 0.03

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