SHARE-BASED COMPENSATION, Options (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Assumptions used to estimate the fair value of options granted
Risk-free interest rates (as a percent)	1.70%	1.10%	1.20%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Expected volatility (as a percent)	29.90%	29.80%	29.70%
Expected life of options in years	4 years 1 month 6 days	4 years 1 month 6 days	4 years
Number of Shares
Outstanding at beginning of year (in shares)	7,662
Granted (in shares)	2,134
Exercised (in shares)	(1,366)
Expired/Forfeited (in shares)	454
Outstanding at end of year (in shares)	7,976	7,662
Shares exercisable at end of year (in shares)	3,492
Weighted-Average Exercise Price
Outstanding at beginning of year (in dollars per share)	$ 17.94
Granted (in dollars per share)	22.05
Exercised (in dollars per share)	12.11
Expired/Forfeited (in dollars per share)	21.92
Outstanding at end of year (in dollars per share)	19.81	$ 17.94
Shares exercisable at end of year (in dollars per share)	$ 17.09
Weighted-Average Remaining Contractual Term (in years)
Outstanding at end of year	6 years 9 months 18 days
Shares exercisable at end of year	5 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding at end of year (in dollars)	$ 51,205
Shares exercisable at end of year (in dollars)	31,872
Additional disclosures relating to options vested
Total grant date fair value of options that vested (in dollars)	8,300	$ 7,400	$ 7,300
Intrinsic value for options that vested (in dollars)	5,400	13,100	18,100
Intrinsic value for options exercised (in dollars)	$ 15,700	$ 30,800	$ 65,600
Nonvested options
Outstanding at beginning of year (in shares)	4,400
Vested (in shares)	1,600
Cancelled (in shares)	500
Outstanding at end of year (in shares)	4,500	4,400
Weighted average grant date fair value
Outstanding at beginning of year (in dollars per share)	$ 5.50
Granted (in dollars per share)	5.88	$ 6.27	$ 6.01
Vested (in dollars per share)	5.22
Cancelled (in dollars per share)	5.66
Outstanding at end of year (in dollars per share)	$ 5.77	$ 5.50

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Represents the total intrinsic value of options vested during the period.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of non-vested options outstanding.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Number of options vested.

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Number of share options (or share units) exercised during the current period.

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