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Consolidated Statements of Comprehensive Earnings (unaudited) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Statement of Comprehensive Income [Abstract]    
Net Earnings $ 105,005 $ 95,327
Net Actuarial Change in Defined Benefit Plans    
Amortization of Net Actuarial Loss 30 36
Tax Expense (7) (9)
Comprehensive Earnings $ 105,028 $ 95,354