v3.26.1
Pension Plans and Other Postretirement Benefit Plans - Changes in Fair Value of Plan Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]    
Total investments measured at fair value $ 119,785 $ 117,009
Money market fund | Fair Value, Inputs, Level 1    
Defined Benefit Plan Disclosure [Line Items]    
Total investments measured at fair value 3,095 3,363
U.S. Treasury securities and U.S. Gov't Agency Obligations | Fair Value, Inputs, Level 2    
Defined Benefit Plan Disclosure [Line Items]    
Total investments measured at fair value 3,699 3,279
Mutual fund - equity | Fair Value, Inputs, Level 2    
Defined Benefit Plan Disclosure [Line Items]    
Total investments measured at fair value 17,729 17,320
Common collective trust | Fair Value, Inputs, Level 2    
Defined Benefit Plan Disclosure [Line Items]    
Total investments measured at fair value $ 95,262 $ 93,047