STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 18, 2016	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015	Jan. 30, 2016
STOCKHOLDERS' EQUITY
Allocated Share-based Compensation Expense		$ 8,275	$ 4,282	$ 20,904	$ 12,456
Number of shares exchanged in payment of withholding taxes (in shares)				81	28
Share-based compensation withholding tax payments				$ 6,241	$ 1,798
Treasury Stock, Shares, Acquired				3	3
Treasury Stock, Value, Acquired, Cost Method				$ 187	$ 195
Treasury Stock, Shares		42	38	42	38	39
Treasury Stock, Value		$ 2,126	$ 1,877	$ 2,126	$ 1,877	$ 1,939
Common Stock, Dividends, Per Share, Cash Paid		$ 0.20	$ 0.15	$ 0.60	$ 0.45
2015 $250M Share Repurchase Program [Member] [Domain] [Domain] [Domain]
STOCKHOLDERS' EQUITY
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 158,500		$ 158,500
2015 $250M Share Repurchase Program [Member] [Domain] [Domain] [Member]
STOCKHOLDERS' EQUITY
Stock Repurchased and Retired During Period, Shares				1,157
Stock Repurchased and Retired During Period, Value				$ 91,527
2015 Share Repurchase Program [Member] [Domain] [Domain]
STOCKHOLDERS' EQUITY
Stock Repurchased and Retired During Period, Shares				310	662
Stock Repurchased and Retired During Period, Value				$ 20,726	$ 41,026
2014 Share Repurchase Program [Member] [Member]
STOCKHOLDERS' EQUITY
Stock Repurchased and Retired During Period, Shares				0	640
Stock Repurchased and Retired During Period, Value				$ 0	$ 39,791
Retained Earnings [Member]
STOCKHOLDERS' EQUITY
Stock Repurchased and Retired During Period, Value				100,500	67,700
Dividends				11,800	9,700
Dividends, Common Stock, Cash				11,200	9,200
Dividendsunvestedshares				600	500
Dividends [Domain]
STOCKHOLDERS' EQUITY
Common Stock, Dividends, Per Share, Cash Paid	$ 0.20
2015 Share Repurchase Program [Member] [Domain] [Domain]
STOCKHOLDERS' EQUITY
Stock Repurchased and Retired During Period, Shares	100
Stock Repurchased and Retired During Period, Value	$ 6,300
Restricted Stock Units (RSUs) [Member]
STOCKHOLDERS' EQUITY
Allocated Share-based Compensation Expense		2,202	$ 2,429	6,629	8,123
Performance Awards Member
STOCKHOLDERS' EQUITY
Allocated Share-based Compensation Expense		$ 6,073	$ 1,853	$ 14,275	$ 4,333