Consolidated Statements of Comprehensive Earnings (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 123,362	$ 133,842
Net Actuarial Change in Defined Benefit Plans:
Amortization of Net Actuarial Loss	53	60
Tax Expense	(12)	(15)
Comprehensive Earnings	$ 123,403	$ 133,887