Statements of Consolidated Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Stock Options and Stock Appreciation Rights [ Member]	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Stock Options and Stock Appreciation Rights [ Member]	Additional Paid-in Capital Performance Shares [Member]	Additional Paid-in Capital Restricted Stock Units (RSUs) [Member]	Retained Earnings	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]	Accumulated Other Comprehensive Income (Loss)	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, 2020			38,710
Beginning balance at Jun. 30, 2020			$ 10,000	$ 176,492				$ 1,200,570	$ (414,090)				$ (129,430)	$ 843,542
Net income	$ 144,757													144,757
Other comprehensive income (loss)	$ 36,338												36,338	36,338
Cash dividends per share	$ 1.30
Cash dividends - $1.30, $1.34, and $1.38 per share for 2021, 2022, and 2023 respectively								(50,992)						(50,992)
Purchases of common stock for treasury, shares			(400)
Purchases of common stock for treasury									(40,089)					(40,089)
Treasury shares issued for:
Exercise of stock appreciation rights and options, shares			152
Stock Issued During Period, Value, Stock Options Exercised										$ (2,009)
Performance share awards, shares			22
Additional Paid in Capital, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units					$ (6,379)	$ (985)	$ (740)
Exercise of stock appreciation rights and options and Performance share awards											$ (20)
Restricted stock units, shares			19
Restricted stock units												$ 95
Total Shareholders' Equity, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units															$ (8,388)	$ (1,005)	$ (645)
Compensation expense				6,454	2,526									6,454	2,526
Other, shares			13
Other				(354)				78	324					48
Ending balance, shares at Jun. 30, 2021			38,516
Ending balance at Jun. 30, 2021			$ 10,000	177,014				1,294,413	(455,789)				(93,092)	932,546
Net income	$ 257,414													257,414
Other comprehensive income (loss)	$ 20,797												20,797	20,797
Cash dividends per share	$ 1.34
Cash dividends - $1.30, $1.34, and $1.38 per share for 2021, 2022, and 2023 respectively								(52,175)						(52,175)
Purchases of common stock for treasury, shares			(149)
Purchases of common stock for treasury									(13,784)					(13,784)
Treasury shares issued for:
Exercise of stock appreciation rights and options, shares			104
Stock Issued During Period, Value, Stock Options Exercised										(2,132)
Performance share awards, shares			5
Additional Paid in Capital, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units					(3,945)	(222)	(598)
Exercise of stock appreciation rights and options and Performance share awards											(73)
Restricted stock units, shares			12
Restricted stock units												(138)
Total Shareholders' Equity, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units															(6,077)	(295)	(736)
Compensation expense				8,558	3,284									8,558	3,284
Other, shares			11
Other				(269)				24	68					(177)
Ending balance, shares at Jun. 30, 2022	38,499		38,499
Ending balance at Jun. 30, 2022	$ 1,149,355		$ 10,000	183,822				1,499,676	(471,848)				(72,295)	1,149,355
Net income	346,739													346,739
Other comprehensive income (loss)	$ 16,999												16,999	16,999
Cash dividends per share	$ 1.38
Cash dividends - $1.30, $1.34, and $1.38 per share for 2021, 2022, and 2023 respectively								(53,887)						(53,887)
Purchases of common stock for treasury, shares			(8)
Purchases of common stock for treasury									(716)					(716)
Treasury shares issued for:
Exercise of stock appreciation rights and options, shares		257	92
Stock Issued During Period, Value, Stock Options Exercised										$ (3,773)
Performance share awards, shares			23
Additional Paid in Capital, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units					(4,256)	$ (1,290)	$ (1,712)
Exercise of stock appreciation rights and options and Performance share awards											$ (758)
Restricted stock units, shares			34
Restricted stock units												$ (932)
Total Shareholders' Equity, Exercise of stock appreciation rights and options, Performance share awards, Restricted stock units															(8,029)	$ (2,048)	$ (2,644)
Compensation expense				9,576	$ 2,785									9,576	$ 2,785
Other, shares			17
Other				(279)				104	482					307
Ending balance, shares at Jun. 30, 2023	38,657		38,657
Ending balance at Jun. 30, 2023	$ 1,458,437		$ 10,000	$ 188,646				$ 1,792,632	$ (477,545)				$ (55,296)	$ 1,458,437