Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)	3 Months Ended
	Apr. 29, 2016	May. 01, 2015	Jan. 29, 2016
Finite-Lived Intangible Assets [Line Items]
Gross	$ 325,102,000		$ 325,102,000
Accumulated Amortization	(72,497,000)		(65,563,000)
Net	252,605,000		259,539,000
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross	355,220,000		355,220,000
Accumulated Amortization	(72,497,000)		(65,563,000)
Net	282,723,000		289,657,000
Amortization expense	6,900,000	$ 7,500,000
Impairment charges	0	$ 0
Trade name
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	30,118,000		30,118,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	189,518,000		189,518,000
Accumulated Amortization	(38,392,000)		(34,869,000)
Net	151,126,000		154,649,000
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(38,392,000)		(34,869,000)
Technology
Finite-Lived Intangible Assets [Line Items]
Gross	135,584,000		135,584,000
Accumulated Amortization	(34,105,000)		(30,694,000)
Net	101,479,000		104,890,000
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (34,105,000)		$ (30,694,000)