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Employee Benefit Plans (Fair Value of the Defined Benefit Pension Plan Assets by Major Categories and by Levels within the Fair Value Hierarchy) General (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets $ 170,640 $ 162,599 $ 156,118
Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 149,683 130,578  
Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 20,957 32,021  
Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 14,375 7,071  
Cash and cash equivalents | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 14,375 7,071  
Cash and cash equivalents | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 0 0  
Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 54,534 51,963  
Equity securities | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 54,534 51,963  
Equity securities | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 0 0  
Debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 42,153 43,493  
Debt securities | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 42,153 43,493  
Debt securities | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 0 0  
Real estate funds      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 42,427 44,907  
Real estate funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 32,286 21,197  
Real estate funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 10,141 23,710  
Hedge funds      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 10,400 8,513  
Hedge funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 0 606  
Hedge funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 10,400 7,907  
Other      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 6,751 6,652  
Other | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets 6,335 6,248  
Other | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Total fair value of plan assets $ 416 $ 404