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Pensions and Other Benefit Plans - Defined Benefit Plans’ Consolidated Assets by Asset Category (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]    
Asset categories $ 199,592 $ 231,667
Measured at NAV    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 98,117 125,042
(Level 1)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 101,475 106,625
(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 15,266 27,576
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 15,266 27,576
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 81,890 76,701
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 81,890 76,701
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 98,117 116,477
Common collective trusts | Measured at NAV    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 98,117 116,477
Common collective trusts | (Level 1)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 0 0
Common collective trusts | (Level 2)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 0 0
Common collective trusts | (Level 3)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 0 0
Alternative real estate    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 0 8,565
Alternative real estate | Measured at NAV    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories   8,565
Alternative real estate | (Level 1)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories   0
Alternative real estate | (Level 2)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories   0
Alternative real estate | (Level 3)    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories   0
Cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Asset categories 4,319 2,348
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 4,319 2,348
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