Segment Data - Summarized Financial Information of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 03, 2019	May 04, 2018	May 03, 2019	May 04, 2018	Oct. 31, 2018
Financial information concerning reportable segments
Revenues	$ 962,036	$ 875,280	$ 1,564,992	$ 1,423,526
Earnings (loss) before income taxes	137,180	169,166	207,200	235,551
Total assets	2,466,000	1,635,747	2,466,000	1,635,747	$ 1,570,984
Operating Segments | Professional
Financial information concerning reportable segments
Revenues	723,506	660,373	1,178,512	1,064,042
Earnings (loss) before income taxes	150,119	164,979	238,097	240,891
Total assets	1,848,351	963,564	1,848,351	963,564
Operating Segments | Residential
Financial information concerning reportable segments
Revenues	232,147	212,169	377,305	354,676
Earnings (loss) before income taxes	22,030	26,304	35,102	42,017
Total assets	271,224	288,248	271,224	288,248
Intersegment gross sales
Financial information concerning reportable segments
Revenues	(23,796)	(10,771)	(37,504)	(17,285)
Intersegment gross sales | Professional
Financial information concerning reportable segments
Revenues	23,716	10,664	37,325	17,122
Intersegment gross sales | Residential
Financial information concerning reportable segments
Revenues	80	107	179	163
Other
Financial information concerning reportable segments
Revenues	6,383	2,738	9,175	4,808
Earnings (loss) before income taxes	(34,969)	(22,117)	(65,999)	(47,357)
Total assets	$ 346,425	$ 383,935	$ 346,425	$ 383,935