Condensed Statements of Shareholder's Equity Condensed Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Common Stock [Member] Stock Options and Stock Appreciation Rights [ Member]	Common Stock [Member] Performance Shares [Member]	Common Stock [Member] Restricted Stock Units (RSUs) [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Stock Options and Stock Appreciation Rights [ Member]	Additional Paid-in Capital [Member] Performance Shares [Member]	Additional Paid-in Capital [Member] Restricted Stock Units (RSUs) [Member]	Retained Earnings [Member]	Treasury Shares- at Cost	Treasury Shares- at Cost Stock Options and Stock Appreciation Rights [ Member]	Treasury Shares- at Cost Performance Shares [Member]	Treasury Shares- at Cost Restricted Stock Units (RSUs) [Member]	Total Accumulated Other Comprehensive Income (Loss) [Member]	Parent [Member]	Parent [Member] Stock Options and Stock Appreciation Rights [ Member]	Parent [Member] Performance Shares [Member]	Parent [Member] Restricted Stock Units (RSUs) [Member]
Beginning balance, shares at Jun. 30, 2023		38,657
Beginning balance at Jun. 30, 2023		$ 10,000				$ 188,646				$ 1,792,632	$ (477,545)				$ (55,296)	$ 1,458,437
Net income	$ 93,826															93,826
Other comprehensive loss	$ (7,074)														(7,074)	(7,074)
Cash Dividends per Common Share	$ 0.35
Cash dividends										(23)						(23)
Exercise of stock appreciation rights and options, shares			32
Performance share awards, shares				54
Restricted stock units, shares					13
Additional Paid in Capital, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units							$ (1,681)	$ (3,072)	$ (726)
Exercise of stock appreciation rights and options												$ (1,912)
Performance share awards													$ (3,487)
Restricted stock units														$ (910)
Total Shareholders' Equity, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units																	$ (3,593)	$ (6,559)	$ (1,636)
Compensation expense						1,976	844									1,976	844
Other, Shares		(1)
Other						(1)				(3)	(78)					(82)
Ending balance, shares at Sep. 30, 2023		38,755
Ending balance at Sep. 30, 2023		$ 10,000				185,986				1,886,432	(483,932)				(62,370)	1,536,116
Beginning balance, shares at Jun. 30, 2024		38,409
Beginning balance at Jun. 30, 2024	$ 1,688,781	$ 10,000				193,778				2,121,838	(559,269)				(77,566)	1,688,781
Net income	92,063															92,063
Other comprehensive loss	$ (8,942)														(8,942)	(8,942)
Cash Dividends per Common Share	$ 0.37
Cash dividends										(9)						(9)
Purchases of common stock for treasury, Shares		(52)
Purchases of common stock for treasury, Amount											(10,479)					(10,479)
Exercise of stock appreciation rights and options, shares			19
Performance share awards, shares				34
Restricted stock units, shares					37
Additional Paid in Capital, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units							(1,106)	$ (2,213)	$ (2,123)
Exercise of stock appreciation rights and options												$ (1,339)
Performance share awards													$ (3,294)
Restricted stock units														$ (2,136)
Total Shareholders' Equity, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units																	(2,445)	$ (5,507)	$ (4,259)
Compensation expense						1,675	$ 1,326									1,675	$ 1,326
Other, Shares		(1)
Other						(12)				(24)	(91)					(127)
Ending balance, shares at Sep. 30, 2024		38,446
Ending balance at Sep. 30, 2024	$ 1,752,077	$ 10,000				$ 191,325				$ 2,213,868	$ (576,608)				$ (86,508)	$ 1,752,077