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Net Periodic Benefit Cost - Schedule of Components of Net Periodic Pension Cost (Details) - Pension Plans, Defined Benefiit - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Service costs	$ 113	$ 127	$ 223	$ 247
Interest cost	1,856	3,124	3,695	6,214
Expected return on plan assets	(1,213)	(2,496)	(2,426)	(4,993)
Net amortization	(249)	241	(492)	482
Settlement	0	23,201	0	23,201
Net periodic pension (benefit) cost	$ 507	$ 24,197	$ 1,000	$ 25,151

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