RETIREMENT AND STOCK PURCHASE PLANS (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
RETIREMENT AND STOCK PURCHASE PLANS
Charge to operations for the 401(k) matching contributions	$ 1.0	$ 1.0	$ 0.9
Employee Stock Discount Plan
Share-based compensation expense	17.1	16.5	13.8
Employee Stock Discount Plan (ESDP)
Employee Stock Discount Plan
Maximum number of common stock shares available for purchase in the plan	2,137,500
Purchase price percentage of fair market value	85.00%
Maximum shares allowable to purchase in each quarter by participants	125
Number of shares purchased	108,110	104,654	103,964
Weighted-average share price of shares purchased (in dollars per share)	$ 28.06	$ 25.18	$ 22.53
Share-based compensation expense	$ 0.8	$ 0.7	$ 0.7
Number of shares reserved for future issuance	740,338