Fair Value Measurements (Details) - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jul. 29, 2017	Jan. 28, 2017
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans	[1],[2]	$ 19,019	$ 18,094
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities held in grantor trust for deferred compensation plans	[1],[2]	19,019	18,094
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Store property, equipment and leasehold improvements, fair value	[3]	$ 251	$ 8,795
Fair Value Inputs, Discount Rate		10.00%	10.00%
Impairment charges on store property, equipment and leasehold improvements		$ 200	$ 19,900
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Store property, equipment and leasehold improvements, fair value	[3]	$ 251	$ 8,795

[1] The liability for the amount due to participants corresponding in value to the securities held in the grantor trust is recorded in other long-term liabilities.

[2] Using the market approach, the fair values of these items represent quoted market prices multiplied by the quantities held. Net gains and losses related to the changes in fair value in the assets and liabilities under the various deferred compensation plans are recorded in selling, general and administrative expenses and were nil for the six months ended July 29, 2017 and for the fiscal year ended January 28, 2017.

[3] Using an undiscounted cash flow model, we evaluate the cash flow trends of our stores at least annually and when events or changes in circumstances, such as a store closure, indicate that property, equipment and leasehold improvements may not be fully recoverable. When a store’s projected undiscounted cash flows indicate its carrying value may not be recoverable, we use a discounted cash flow model, with a 10% discount rate, to estimate the fair value of the underlying long-lived assets. An impairment write-down is recorded if the carrying value of a long-lived asset exceeds its fair value. Key assumptions in estimating future cash flows include, among other things, expected future operating performance, including expected closure date and lease term, and changes in economic conditions. We believe estimated future cash flows are sufficient to support the carrying value of our long-lived assets. Significant changes in the key assumptions used in our cash flow projections may result in additional asset impairments. For the six months ended July 29, 2017 and fiscal year 2016, we recognized impairment charges of $0.2 million and $19.9 million respectively. Impairment charges are recorded in cost of sales and related buying, occupancy and distribution expenses.