Earnings per Share Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Numerator:
Net income as reported	$ 369,621	$ 374,611	$ 899,771	$ 1,095,786
Denominator:
Basic weighted-average (in shares)	98,434	102,980	99,718	104,299
Common stock equivalents (in shares)	736	1,034	811	1,062
Diluted weighted-average (in shares)	99,170	104,014	100,529	105,361
Shares issued under stock incentive and employee stock purchase plans (in shares)	21	50	399	725
Restricted Stock Units RSU And Employee Stock Option Member
Denominator:
Weighted-average number of antidilutive options and restricted stock units (in shares)	5	9	86	51