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Pensions and Other Benefit Plans - Defined Benefit Plans’ Consolidated Assets by Asset Category (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | $ 94,240 | $ 199,592
Measured at NAV |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 98,117
(Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 94,240 | 101,475
(Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 0
(Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 0
Equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 10,735 | 15,266
Equity securities | Measured at NAV |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 0
Equity securities | (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 10,735 | 15,266
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 | 83,216 | 81,890
Fixed income securities | Measured at NAV |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 0
Fixed income securities | (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 83,216 | 81,890
Fixed income securities | (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 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 | 0 | 98,117
Common collective trusts | Measured at NAV |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories |  | 98,117
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 | 289 | 4,319
Cash equivalents | Measured at NAV |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 0 | 0
Cash equivalents | (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset categories | 289 | 4,319
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

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