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Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2011	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2005
Accumulated Other Comprehensive Income (Loss) [Line Items]
Deferred taxes related to adjustments included in AOCI	$ 636		$ (6,371)	$ (5,780)
Amount of charge in the minimum pension liability component of other comprehensive income					$ 406
Pension Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	(7,251)	$ 7,605
Defined Benefit Postretirement Life Insurance
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	$ (194)	747
Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax		$ 935

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