Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 24,555	$ (4,483)	$ 102,120	$ 60,542
Defined Benefit Pension and Postretirement Benefit Plans:
Amortization of loss, before tax	170	101	510	301
Amortization of prior service credit, before tax	(45)	(45)	(136)	(136)
Total Other Comprehensive Income, Before Tax	125	56	374	165
Tax Attributes of Items in Other Comprehensive Income:
Amortization of loss, tax	(39)	(24)	(119)	(71)
Amortization of prior service credit, tax	11	11	32	32
Total Tax Expense	(28)	(13)	(87)	(39)
Other Comprehensive Income, Net of Tax	97	43	287	126
Comprehensive Income (Loss)	$ 24,652	$ (4,440)	$ 102,407	$ 60,668