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The percentage of shares that can be put.

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value

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The pecentage of performance metrics which are based on consolidated Adjusted Compensation EBITDA when determining whether or not performance-based restricted stock units vest.

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The pecentage of performance metrics which are based on total return on invested capital when determining whether or not performance-based restricted stock units vest.

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchange Ratio

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value

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The vesting percentage of options or units.

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The number of years of continuous service.

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Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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-Name Accounting Standards Codification

-Topic 718

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

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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- Definition

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.

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- Definition

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

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No definition available.

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- Definition

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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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

The number of shares purchased on the open market during the period for issuance to employees under the plan.

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- Definition

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

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No definition available.

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STOCK-BASED COMPENSATION - Narrative (Details) (USD $)	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended
STOCK-BASED COMPENSATION - Narrative (Details) (USD $)	Jan. 31, 2015	Feb. 01, 2014	May 22, 2010	Feb. 02, 2013	Jul. 22, 2005	Dec. 24, 2013	Nov. 06, 2013	Oct. 11, 2014	Jan. 31, 2015	Nov. 01, 2014	May 26, 2011	Nov. 01, 2015	Aug. 01, 2015	May 01, 2015	Mar. 12, 2013
2005 Management Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental expenses		$ 2,000,000
Years of Continuous Service	4 years
Put option percentage on original investment shares	25.00%								25.00%						50.00%
2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares issued under incentive plan	3,750,000								3,750,000
Percentage of performance metrics based on consolidated adjusted compensation EBITDA performance				50.00%
Percentage of performance metrics based on total return on invested capital				50.00%
Years of Continuous Service			4 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	8.00	$ 25.25		44.00
Granted	3,901,217	1,587,057		640,756
Aggregate intrinsic value of service based options exercised		4,000,000		16,000,000
Fair value of service based vested options	2,000,000	19,000,000		23,000,000
Cash payments to settle share based liability awards		2,000,000
Payments to repurchase shares previously issued to employees		8,000,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense		6,000,000
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Receipts from exercise of service based options		1,000,000
Payments to repurchase shares previously issued to employees				3,000,000
Stock Options [Member] \| 2005 Management Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested					40.00%
Incremental expenses		1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period					10 years
Stock Options [Member] \| 2005 Management Equity Plan \| Tranches Two and Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					3 years
Stock Options [Member] \| 2005 Management Equity Plan \| Tranches Two and Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					2 years
Stock Options [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested	50.00%	50.00%		50.00%		50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year	2 years		2 years		2 years
Incremental expenses	2,000,000	1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchange Ratio		1
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	8.00	$ 22.00
Total unrecognized compensation cost	10,000,000								10,000,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 219 days
Stock Options [Member] \| 2010 Incentive Plan \| President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested							50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period							1 year
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price							$ 22.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value							5,000,000
Stock Options [Member] \| 2010 Incentive Plan \| Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								1 year
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price								$ 8.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value								1,000,000
Stock Options [Member] \| 2010 Incentive Plan \| Old Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	1,566,307.00					919,599.00
Stock Options [Member] \| 2010 Incentive Plan \| New Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchange Ratio	1
Granted						459,805.00
Stock Options [Member] \| 2010 Incentive Plan \| First Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Stock Options [Member] \| 2010 Incentive Plan \| Second Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	2 years
Stock Options [Member] \| 2010 Incentive Plan \| Installments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Stock Options [Member] \| 2010 Incentive Plan \| Installments [Member] \| President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period							4 years
Stock Options [Member] \| 2010 Incentive Plan \| Installments [Member] \| Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								4 years
Stock Options [Member] \| 2010 Incentive Plan \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares issued under incentive plan	500,000								500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchange Ratio		2
Stock Options [Member] \| 2010 Incentive Plan \| Maximum [Member] \| Old Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exchange Ratio	1
Stock Options [Member] \| 2010 Incentive Plan \| Tranche Two [Member] \| Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested								50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								1 year
Stock Options [Member] \| 2010 Incentive Plan \| Tranche Two [Member] \| Installments [Member] \| Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								4 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	0.00	$ 0.00		0.00
Restricted Stock [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 30.00		44.00
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	8.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	9,000,000	4,000,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	8.00	$ 25.40		44.00
Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested	100.00%	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year	2 years
Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan \| Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested							50.00%		12.50%	50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value							$ 22.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value							8,000,000
Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan \| President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value							$ 22.00
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period							1 year
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value							2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value							22.00
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award							22,728
Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan \| Installments [Member] \| President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period							4 years
Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	6 months
Performance Shares [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value				44.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period						104,240.00
Performance Shares [Member] \| 2010 Incentive Plan \| Tranche Two [Member] \| Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested								50.00%
Peformance-based shares and Performance-based stock units [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested				100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years							3 years
Share-based Compensation Arrangement by Share-based Payment Award, Performance Metrics Period				3 years
Nonvested Restricted Shares and Restricted Units [Member] \| 2010 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	1,000,000								1,000,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 37 days
Scenario, Forecast [Member] \| Restricted Stock Units (RSUs) [Member] \| 2010 Incentive Plan \| Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of options vested												12.50%	12.50%	12.50%