Pensions and Other Benefit Plans - Defined Benefit Plans’ Consolidated Assets by Asset Category (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Defined Benefit Plan Disclosure [Line Items]
Asset categories	$ 122,770	$ 94,240
Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Asset categories	112,480	0
(Level 1)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	6,006	94,240
(Level 2)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	4,284	0
(Level 3)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Asset categories	6,843	10,735
Equity securities \| Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Asset categories	3,112	0
Equity securities \| (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	3,731	10,735
Equity securities \| (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	0
Equity securities \| (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	0
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Asset categories	8,439	83,216
Fixed income securities \| Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Asset categories	4,155	0
Fixed income securities \| (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	83,216
Fixed income securities \| (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	4,284	0
Fixed income securities \| (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	0
Common collective trusts
Defined Benefit Plan Disclosure [Line Items]
Asset categories	104,258	0
Common collective trusts \| Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Asset categories	104,258
Common collective trusts \| (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0
Common collective trusts \| (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0
Common collective trusts \| (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0
Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Asset categories	3,230	289
Cash equivalents \| Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Asset categories	955	0
Cash equivalents \| (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	2,275	289
Cash equivalents \| (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	0	0
Cash equivalents \| (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Asset categories	$ 0	$ 0