CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Addi- tional Paid-in Capital	Retained Earnings	Treasury Stock	AOCI	Non-controlling Interest
Beginning balance at Oct. 31, 2023	$ 6,813,202	$ 1,129	$ 698,548	$ 6,675,719	$ (619,150)	$ 40,910	$ 16,046
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	721,175			721,175
Purchase of treasury stock	(181,212)				(181,212)
Exercise of stock options, stock based compensation issuances, and employee stock purchase plan issuances	(3,542)		(31,428)		27,886
Stock-based compensation	22,139		22,139
Dividends declared	(46,659)			(46,659)
Other comprehensive (loss) income	(1,083)					(1,083)
Loss attributable to non-controlling interest	(440)						(440)
Capital contributions – net	614						614
Ending balance at Apr. 30, 2024	7,324,194	1,129	689,259	7,350,235	(772,476)	39,827	16,220
Beginning balance at Jan. 31, 2024	7,035,645	1,129	685,941	6,892,821	(597,632)	37,012	16,374
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	481,617			481,617
Purchase of treasury stock	(181,156)				(181,156)
Exercise of stock options, stock based compensation issuances, and employee stock purchase plan issuances	5,741		(571)		6,312
Stock-based compensation	3,889		3,889
Dividends declared	(24,203)			(24,203)
Other comprehensive (loss) income	2,815					2,815
Loss attributable to non-controlling interest	(238)						(238)
Capital contributions – net	84						84
Ending balance at Apr. 30, 2024	7,324,194	1,129	689,259	7,350,235	(772,476)	39,827	16,220
Beginning balance at Oct. 31, 2024	7,686,715	1,129	694,713	8,153,356	(1,209,547)	31,277	15,787
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	530,150			530,150
Purchase of treasury stock	(201,110)				(201,110)
Exercise of stock options, stock based compensation issuances, and employee stock purchase plan issuances	(22,242)		(38,074)		15,832
Stock-based compensation	22,795		22,795
Dividends declared	(48,649)			(48,649)
Other comprehensive (loss) income	(3,147)					(3,147)
Loss attributable to non-controlling interest	(498)						(498)
Capital contributions – net	401						401
Ending balance at Apr. 30, 2025	7,964,415	1,129	679,434	8,634,857	(1,394,825)	28,130	15,690
Beginning balance at Jan. 31, 2025	7,811,494	1,129	674,492	8,307,555	(1,217,942)	30,372	15,888
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	352,447			352,447
Purchase of treasury stock	(177,362)				(177,362)
Exercise of stock options, stock based compensation issuances, and employee stock purchase plan issuances	648		169		479
Stock-based compensation	4,773		4,773
Dividends declared	(25,145)			(25,145)
Other comprehensive (loss) income	(2,242)					(2,242)
Loss attributable to non-controlling interest	(240)						(240)
Capital contributions – net	42						42
Ending balance at Apr. 30, 2025	$ 7,964,415	$ 1,129	$ 679,434	$ 8,634,857	$ (1,394,825)	$ 28,130	$ 15,690