Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate (as a percent)	21.00%	21.00%	21.00%
Expected tax expense (benefit) at statutory rate	$ (1,156)	$ 12,921	$ 15,640
State income taxes net of federal benefit	(514)	652	2,719
Foreign taxes at rates other than statutory federal rate	(431)	(247)	1,757
Employee benefits	483	1,347	1,207
US benefit on foreign derived income	(259)	(686)	(477)
US Tax on foreign earnings	379	757	1,257
Permanent items	421	694	168
Valuation allowance	181	(1,109)	(787)
Federal tax credits	(1,002)	(1,384)	(1,539)
Other	(28)	1,437	285
Tax audit adjustments	0	(819)	2,523
Unremitted earnings	397	501	720
Reversal of stranded tax effects from AOCI	961	(22)	0
Interest income from tax refunds	(505)	0	0
Non-deductible interest	286	420	119
Transfer pricing adjustments	600	0	0
Return to provision adjustment	(180)	440	2,454
Income tax (benefit) expense	$ (367)	14,902	$ 26,046
Tax attributes written off		1,142
Decrease in valuation allowance		1,142
Montratec
Effective Income Tax Rate Reconciliation [Line Items]
Non-deductible interest		$ 525