Acquisitions - Additional Information (Detail)			0 Months Ended			3 Months Ended
	May 01, 2015 USD ($)	Oct. 31, 2014 USD ($)	Dec. 20, 2013 Sunbank Family Of Companies LLC. USD ($)	Jan. 30, 2015 Belgium-based Barco N V USD ($)	Jan. 30, 2015 Belgium-based Barco N V EUR (€)	Jan. 30, 2015 Belgium-based Barco N V USD ($)	Jan. 31, 2015 Belgium-based Barco N V USD ($)
Business Acquisition [Line Items]
Business acquired			$ 51,700,000	$ 171,000,000	€ 150,000,000
Foreign currency exchange loss						(2,900,000)
Estimated fair value adjustment for inventory, will be recognized as cost of goods sold				7,100,000
Fair value adjustment for inventory, cost of goods sold period, months				13 months	13 months
Acquisition-related costs				3,300,000
Goodwill	1,074,437,000	1,071,786,000					63,508,000
Contingent consideration			$ 5,000,000
Contingent consideration achievement period of certain sales levels			2 years