Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016	Jan. 28, 2017	Mar. 04, 2016	Jan. 30, 2016
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Fair Value Inputs, Discount Rate	13.00%
Preliminary Business Combination, Contingent Consideration Liability	$ 0	$ 53,843	$ 0	$ 53,843		$ 56,000
Accretion Expense			3,506	5,080
Liabilities, Fair Value Adjustment		0	(32,432)
Contingent Consideration Other Adjustments			684	(2,157)
Business Combination, Contingent Consideration, Liability	4,962	$ 58,923	4,962	$ 58,923	$ 33,204		$ 0
Contractual Obligations [Abstract]
Purchase Commitment, Remaining Minimum Amount Committed	200		200
Unrecorded Unconditional Purchase Obligation, Due within Five Years	$ 21,600		$ 21,600