Stock-Based Compensation -Shares of Stock Outstanding (Details) shares in Thousands	12 Months Ended
Jan. 30, 2016 $ / shares shares
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Beginning balance, Outstanding (in shares) \| shares	398
Granted (in shares) \| shares	795
Vested (in shares) \| shares	(409)
Cancelled (in shares) \| shares	(153)
Ending balance, Outstanding (in shares) \| shares	631
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Beginning balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 4.60
Granted, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	3.14
Vested, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	4.33
Cancelled, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	3.16
Ending balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 3.28
Cash-Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Beginning balance, Outstanding (in shares) \| shares	747
Granted (in shares) \| shares	0
Vested (in shares) \| shares	(101)
Cancelled (in shares) \| shares	(178)
Ending balance, Outstanding (in shares) \| shares	468
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Beginning balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 2.44
Granted, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Vested, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	1.80
Cancelled, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	1.42
Ending balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 0.26
Non-vested stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Beginning balance, Outstanding (in shares) \| shares	1,451
Granted (in shares) \| shares	446
Vested (in shares) \| shares	(931)
Cancelled (in shares) \| shares	(249)
Ending balance, Outstanding (in shares) \| shares	717
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Beginning balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 11.61
Granted, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	2.88
Vested, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	10.63
Cancelled, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	10.84
Ending balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 7.72
Performance-Based Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Beginning balance, Outstanding (in shares) \| shares	0
Granted (in shares) \| shares	0
Vested (in shares) \| shares	0
Cancelled (in shares) \| shares	0
Ending balance, Outstanding (in shares) \| shares	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Beginning balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 0.00
Granted, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Vested, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Cancelled, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Ending balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 0.00
Market-based Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Beginning balance, Outstanding (in shares) \| shares	489
Granted (in shares) \| shares	0
Vested (in shares) \| shares	0
Cancelled (in shares) \| shares	(269)
Ending balance, Outstanding (in shares) \| shares	220
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Beginning balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 10.25
Granted, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Vested, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	0.00
Cancelled, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	10.74
Ending balance, Outstanding, Weighted Average Grant-Date Fair Value (usd per share) \| $ / shares	$ 9.65

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of grants made 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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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