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Net Periodic Benefit Cost (Narratives) (Details) - USD ($)
shares in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]          
Effect of dilutive employee stock options and other share-based awards 152 371 170 368  
Average basic shares outstanding 28,626 28,469 28,597 27,887  
Share-based Payment Arrangement, Option [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount     715 156  
Pension Plans, Defined Benefiit          
Defined Benefit Plan Disclosure [Line Items]          
Service costs $ 199,000 $ 242,000 $ 536,000 $ 743,000  
Interest cost 2,848,000 2,528,000 8,537,000 7,607,000  
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (2,709,000) (3,259,000) (8,130,000) (9,778,000)  
Net amortization 192,000 363,000 607,000 1,096,000  
Net periodic pension (benefit) cost $ 530,000 $ (126,000) $ 1,550,000 $ (332,000)  
Forecast [Member]          
Defined Benefit Plan Disclosure [Line Items]          
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year         $ 4,958,000