Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Income Statement [Abstract]
Net sales	$ 660,000	$ 556,000	$ 1,881,300	$ 1,577,500
Cost of sales	233,200	199,800	679,100	565,100
Gross profit	426,800	356,200	1,202,200	1,012,400
Selling, general and administrative expense	251,000	208,700	724,700	590,600
Research and development expense	22,500	17,500	62,200	50,600
Amortization of intangibles	37,700	17,200	110,500	50,600
Impairment of intangibles	0	0	24,400	0
Operating income	115,600	112,800	280,400	320,600
Interest expense	22,800	8,300	59,900	23,300
Other expense (income), net	2,400	(3,200)	1,300	(100)
Income before income taxes	90,400	107,700	219,200	297,400
(Benefit) provision for income taxes	(10,400)	4,100	180,000	13,100
Net income	$ 100,800	$ 103,600	$ 39,200	$ 284,300
Earnings per share - basic	$ 2.05	$ 2.12	$ 0.80	$ 5.81
Earnings per share - diluted	$ 2.03	$ 2.09	$ 0.79	$ 5.74
Number of shares used to compute earnings per share:
Basic (shares)	49,100	48,900	49,000	48,900
Diluted (shares)	49,700	49,600	49,600	49,500