FAIR VALUE MEASUREMENTS AND DERIVATIVES (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 31, 2015 USD ($) item	Nov. 01, 2014 USD ($)	Oct. 31, 2015 USD ($) item	Nov. 01, 2014 USD ($)	Jan. 31, 2015 USD ($)
Other liabilities:
Derivative liability		$ 800		$ 800		$ 600
Effect of interest rate swap on the consolidated financial statements
Amount of Loss in Other Comprehensive Loss (Effective Portion)		(225)	$ (170)	(128)	$ (336)
Amount of Loss Recognized in Earnings (Effective Portion)	[1]	$ (155)	$ (155)	$ (459)	$ (459)
Swap Agreement | Senior Secured Term Loan, due October 2018
Information by level for assets and liabilities that are measured at fair value on a recurring basis
Number of interest rate swaps designated as cash flow hedge | item		2		2
Value of senior secured term loan		$ 100,000		$ 100,000
Recurring basis | Fair Value
Other liabilities:
Derivative liability	[2]	830		830		625
Recurring basis | Cash and cash equivalents | Fair Value
Assets:
Assets		71,332		71,332		38,044
Recurring basis | Collateral investments | Fair Value
Assets:
Assets	[3]	21,488		21,488		21,611
Recurring basis | Deferred compensation assets | Fair Value
Assets:
Assets	[3]	4,367		4,367		4,382
Recurring basis | Level 1 | Cash and cash equivalents
Assets:
Assets		71,332		71,332		38,044
Recurring basis | Level 1 | Collateral investments
Assets:
Assets	[3]	21,488		21,488		21,611
Recurring basis | Level 2
Other liabilities:
Derivative liability	[2]	830		830		625
Recurring basis | Level 2 | Deferred compensation assets
Assets:
Assets	[3]	$ 4,367		$ 4,367		$ 4,382

[1] Represents the effective portion of the loss reclassified from accumulated other comprehensive loss.

[2] Included in other long-term liabilities.

[3] Included in other long-term assets.