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Employee Benefit Plans (Components of net periodic benefit costs post retirement benefits) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Postemployment Benefits [Abstract]    
Service cost for benefits earned during the period $ 169 $ 245
Other components of net periodic benefit costs:    
Interest cost on accumulated postretirement benefit 371 375
Other components 25 3
Total other components of net periodic benefit costs 346 372
Net periodic postretirement benefit cost $ 515 $ 617