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Condensed Consolidated Statements Of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Statement of Comprehensive Income [Abstract]    
Net Income $ 44,701 $ 43,951
Defined Benefit Pension and Postretirement Benefit Plans:    
Amortization of loss, before tax 132 144
Amortization of prior service credit, before tax (45) (45)
Total Other Comprehensive Income, Before Tax 87 99
Tax Attributes of Items in Other Comprehensive Income:    
Amortization of loss, tax (30) (34)
Amortization of prior service credit, tax 10 11
Total Tax Expense (20) (23)
Other Comprehensive Income, Net of Tax 67 76
Comprehensive Income $ 44,768 $ 44,027