SHARE-BASED COMPENSATION (Restricted Stock Unit Activity) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Feb. 02, 2019		Feb. 03, 2018	Jan. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)	$ 5.7		$ 2.8	$ 7.0
Weighted-Average Grant Date Fair Value [Roll Forward]
Target percentage of equity awards earned	100.00%
Service-based restricted stock units with $1.00 net income requirement [Member]
Number of Underlying Shares Outstanding [Roll Forward]
Number of Underlying Shares, Outstanding, Ending Balance (in shares)	552,466
Market-based Restricted Stock Units (RSUs) [Member]
Number of Underlying Shares Outstanding [Roll Forward]
Number of Underlying Shares, Outstanding, Ending Balance (in shares)	435,970		383,980
Number of Underlying Shares, Granted (in shares)	142,014
Number of Underlying Shares, Change due to performance criteria achievement (in shares)	(36,817)
Number of Underlying Shares, Vested (in shares)	(7,185)
Number of Underlying Shares, Forfeited (in shares)	(46,022)
Weighted-Average Grant Date Fair Value [Roll Forward]
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 33.69
Weighted-Average Grant Date Fair Value, Change due to performance achievement criteria (in dollars per share)	19.04
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	19.04
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	22.18
Weighted-Average Grant Date Fair Value, Unvested, Outstanding (in dollars per share)	$ 21.24		$ 16.50
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 3.9
Service-based Restricted Stock Unit (RSUs) [Member]
Number of Underlying Shares Outstanding [Roll Forward]
Number of Underlying Shares, Outstanding, Ending Balance (in shares)	2,020,030	[1]	2,520,160
Number of Underlying Shares, Granted (in shares)	796,624
Number of Underlying Shares, Change due to performance criteria achievement (in shares)	0
Number of Underlying Shares, Vested (in shares)	(982,188)
Number of Underlying Shares, Forfeited (in shares)	(314,566)
Weighted-Average Grant Date Fair Value [Roll Forward]
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 21.55
Weighted-Average Grant Date Fair Value, Change due to performance achievement criteria (in dollars per share)	0.00
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	17.41
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	15.70
Weighted-Average Grant Date Fair Value, Unvested, Outstanding (in dollars per share)	$ 16.76		$ 15.35
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 22.5
Performance-based Restricted Stock Units (RSUs) [Member]
Number of Underlying Shares Outstanding [Roll Forward]
Number of Underlying Shares, Outstanding, Ending Balance (in shares)	801,527	[1]	690,174
Number of Underlying Shares, Granted (in shares)	203,006
Number of Underlying Shares, Change due to performance criteria achievement (in shares)	(43,999)
Number of Underlying Shares, Vested (in shares)	0
Number of Underlying Shares, Forfeited (in shares)	(47,654)
Weighted-Average Grant Date Fair Value [Roll Forward]
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 21.67
Weighted-Average Grant Date Fair Value, Change due to performance achievement criteria (in dollars per share)	20.10
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	0.00
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	15.32
Weighted-Average Grant Date Fair Value, Unvested, Outstanding (in dollars per share)	$ 13.65		$ 11.82
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 6.2
Minimum [Member] | Performance-based Restricted Stock Units (RSUs) [Member]
Weighted-Average Grant Date Fair Value [Roll Forward]
Target percentage of equity awards earned	0.00%
Maximum [Member] | Performance-based Restricted Stock Units (RSUs) [Member]
Weighted-Average Grant Date Fair Value [Roll Forward]
Target percentage of equity awards earned	200.00%
Market Vesting Conditions [Member] | Market-based Restricted Stock Units (RSUs) [Member]
Weighted-Average Grant Date Fair Value [Roll Forward]
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	$ 33.69		$ 11.79	$ 31.01

[1] are reflected at 100% of their target vesting amount in the table above. Certain unvested shares related to restricted stock units with performance-based vesting conditions can achieve up to 200% of their target vesting amount.