Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	May. 01, 2015	Jul. 31, 2015	Oct. 31, 2014	Aug. 01, 2014
Other Intangible Assets
Gross Carrying Amount		$ 165,085	$ 57,556
Accumulated Amortization		(48,144)	(38,608)
Net		116,941	18,948
Total other intangible assets, gross		169,948	62,437
Total other intangible assets, net		121,804	$ 23,829	$ 25,261
Impairment of other intangible assets	$ 1,400
Amortization expense for intangible assets		10,000
Estimated amortization expense
Fiscal 2015 (remainder)		2,800
Fiscal 2016		10,300
Fiscal 2017		9,500
Fiscal 2018		7,400
Fiscal 2019		6,600
After fiscal 2019		$ 80,300
Patents
Other Intangible Assets
Weighted-average Life (Years)		9 years 10 months 24 days	9 years 4 months 24 days
Gross Carrying Amount		$ 15,202	$ 10,711
Accumulated Amortization		(10,003)	(8,942)
Net		$ 5,199	$ 1,769
Non-compete agreements
Other Intangible Assets
Weighted-average Life (Years)		5 years 6 months	5 years 4 months 24 days
Gross Carrying Amount		$ 6,931	$ 7,039
Accumulated Amortization		(6,071)	(5,315)
Net		$ 860	$ 1,724
Customer-related
Other Intangible Assets
Weighted-average Life (Years)		19 years 1 month 6 days	10 years 8 months 12 days
Gross Carrying Amount		$ 84,618	$ 8,650
Accumulated Amortization		(9,156)	(5,517)
Net		$ 75,462	$ 3,133
Developed technology
Other Intangible Assets
Weighted-average Life (Years)		7 years 7 months 6 days	7 years 7 months 6 days
Gross Carrying Amount		$ 28,819	$ 28,841
Accumulated Amortization		(19,704)	(16,869)
Net		$ 9,115	$ 11,972
Trade names
Other Intangible Assets
Weighted-average Life (Years)		19 years 2 months 12 days	5 years
Gross Carrying Amount		$ 28,715	$ 1,515
Accumulated Amortization		(2,410)	(1,165)
Net		26,305	350
Non-amortizable - trade names		4,863	4,881
Other
Other Intangible Assets
Gross Carrying Amount		800	800
Accumulated Amortization		$ (800)	$ (800)