Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Foreign Currency Translation Adjustments [Member]	Unrealized Derivative Gains (Losses) [Member]	Minimum Retirement Benefit Liability Adjustments [Member]	Total Accumulated Other Comprehensive (Loss) Earnings [Member]	Deferred Compensation [Member]	Retained Earnings [Member]	Treasury Stock at Cost [Member]	Treasury Stock Held for Deferred Compensaton [Member]
Balances at Sep. 30, 2022	$ 1,901,122	$ 106	$ 293,540	$ (86,494)	$ (6,215)	$ 146	$ (92,563)	$ 6,781	$ 2,727,233	$ (1,027,194)	$ (6,781)
Net earnings	65,117								65,117
Other comprehensive earnings (loss), net of tax	47,945			36,562	10,788	595	47,945
Cash dividends paid	(24,537)								(24,537)
Sales of treasury stock	13,771		1,420							12,351
Common shares issued for benefit plans	19,467		10,943							8,524
Purchases of treasury stock	(26,369)									(26,369)
Stock-based compensation	15,538		15,538
Purchases of stock by/ deferred compensation								112			(112)
Distribution of stock from deferred compensation								(3,574)			3,574
Balances at Mar. 31, 2023	2,012,054	106	321,441	(49,932)	4,573	741	(44,618)	3,319	2,767,813	(1,032,688)	(3,319)
Balances at Dec. 31, 2022	1,939,435	106	305,100	(58,548)	(730)	646	(58,632)	5,975	2,745,484	(1,052,623)	(5,975)
Net earnings	35,511								35,511
Other comprehensive earnings (loss), net of tax	14,014			8,616	5,303	95	14,014
Cash dividends paid	(13,182)								(13,182)
Sales of treasury stock	12,747		1,259							11,488
Common shares issued for benefit plans	19,307		10,860							8,447
Stock-based compensation	4,222		4,222
Purchases of stock by/ deferred compensation								42			(42)
Distribution of stock from deferred compensation								(2,698)			2,698
Balances at Mar. 31, 2023	2,012,054	106	321,441	(49,932)	4,573	741	(44,618)	3,319	2,767,813	(1,032,688)	(3,319)
Balances at Sep. 30, 2023	2,070,989	106	327,941	(67,393)	(9,719)	6,441	(70,671)	2,776	2,908,574	(1,094,961)	(2,776)
Net earnings	187,600								187,600
Other comprehensive earnings (loss), net of tax	9,270			11,015	(1,723)	(22)	9,270
Cash dividends paid	(28,327)								(28,327)
Sales of treasury stock	48,091		12,468							35,623
Common shares issued for benefit plans	21,887		13,966							7,921
Stock-based compensation	19,903		19,903
Purchases of stock by/ deferred compensation								79			(79)
Distribution of stock from deferred compensation								177			(177)
Balances at Mar. 31, 2024	2,329,413	106	374,278	(56,378)	(11,442)	6,419	(61,401)	3,032	3,067,847	(1,051,417)	(3,032)
Balances at Dec. 31, 2023	2,190,062	106	337,038	(45,705)	(10,330)	6,651	(49,384)	3,049	2,985,409	(1,083,107)	(3,049)
Net earnings	97,556								97,556
Other comprehensive earnings (loss), net of tax	(12,017)			(10,673)	(1,112)	(232)	(12,017)
Cash dividends paid	(15,118)								(15,118)
Sales of treasury stock	32,077		8,308							23,769
Common shares issued for benefit plans	21,887		13,966							7,921
Stock-based compensation	14,966		14,966
Purchases of stock by/ deferred compensation								47			(47)
Distribution of stock from deferred compensation								(64)			64
Balances at Mar. 31, 2024	$ 2,329,413	$ 106	$ 374,278	$ (56,378)	$ (11,442)	$ 6,419	$ (61,401)	$ 3,032	$ 3,067,847	$ (1,051,417)	$ (3,032)