XML 110 R84.htm IDEA: XBRL DOCUMENT v3.25.2
Pension and Other Postretirement Benefits - Components of Net Periodic Other Postretirement Benefit Cost (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Net periodic other postretirement benefit costs      
Special termination benefit charge   $ 14 $ 431
Other postretirement benefit plans [Member]      
Net periodic other postretirement benefit costs      
Interest cost $ 393 424 417
Amortization of prior service credit (254) (254) (271)
Recognition of actuarial loss 139 142 192
Net Periodic Benefit (Income) Cost 278 312 338
Pension Plan [Member]      
Net periodic other postretirement benefit costs      
Service cost 909 1,181 963
Interest cost 34,013 35,551 32,235
Amortization of prior service credit (9) (4) 5
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment 0 0 (1)
Recognition of actuarial loss 8,411 5,753 4,440
Special termination benefit charge 302    
Net Periodic Benefit (Income) Cost $ 1,925 $ (2,025) $ (1,950)