BENEFIT PLANS (Details) - 401(k) savings plans - USD ($) $ in Millions	9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014
CONTRIBUTION PLANS
Contribution expense	$ 2.2	$ 2.3
Minimum age of employee to qualify for qualified savings plan	18 years
Employer matching contribution of the first 6% of participant's discretionary contribution (as a percent)	50.00%
Percentage of participant's discretionary contribution matched by 50% of employer contribution (as a percent)	6.00%
Maximum employer match of employee compensation under both savings plans (as a percent)	3.00%
Condition 1
CONTRIBUTION PLANS
Minimum service period of employee to qualify for qualified savings plan	6 months
Minimum working hours of employee to qualify for qualified savings plan	500 hours
Condition 2
CONTRIBUTION PLANS
Minimum service period of employee to qualify for qualified savings plan	12 months
Minimum working hours of employee to qualify for qualified savings plan	1000 hours