Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Pension liability adjustments, net of tax expense (benefit)	$ (8,389)	$ (475)	$ (3,735)
Change in derivatives qualifying as hedges, tax expense (benefit)	1,859	1,111	(2,636)
Pension Plans
Pension liability adjustments, net of tax expense (benefit)	(8,420)	(71)	(3,678)
Postretirement Benefit Plans
Pension liability adjustments, net of tax expense (benefit)	24	22	16
Defined Benefit Postretirement Life Insurance
Pension liability adjustments, net of tax expense (benefit)	$ 7	$ (426)	$ (73)