Current Income Tax Benefit

No definition available.

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- Definition

Deferred Tax Assets Related To Separate Filing Jurisdictions

+ References

No definition available.

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- Definition

Provisions For Valuation Allowance

+ References

No definition available.

+ Details

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- Definition

Rolling Period To Evaluate Acquisitions And Dispositions Of Ownership Interests

+ References

No definition available.

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- Definition

Tax Credit Carryforward Expiration Date State

+ References

No definition available.

+ Details

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b),(c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

+ Details

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- Definition

Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

+ References

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Carryforwards

-URI http://asc.fasb.org/extlink&oid=6506874

+ Details

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318

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Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Jan. 29, 2011
Operating Loss Carryforwards [Line Items]
Tax benefits from uncertain tax positions	$ 300,000psun_CurrentIncomeTaxBenefit
Total net deferred tax asset	3,670,000us-gaap_DeferredTaxAssetsNet	4,010,000us-gaap_DeferredTaxAssetsNet
Deferred tax assets related to separate filing jurisdictions	3,700,000
Valuation allowance	150,395,000	138,281,000
Change in total valuation allowance	12,100,000
Rolling period to evaluate certain acquisitions and dispositions of ownership interests	3 years
Unrecognized income tax benefits	1,000us-gaap_UnrecognizedTaxBenefits	11,000us-gaap_UnrecognizedTaxBenefits	324,000us-gaap_UnrecognizedTaxBenefits	313,000us-gaap_UnrecognizedTaxBenefits
Continuing operations [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance provision	11,700,000
Discontinuing operations [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance provision	400,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	124,400,000
Net operating losses ("NOLs")	108,300,000
Credit carryforwards	600,000
Carryforwards expiration	2029
State and local jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	26,000,000
Net operating losses ("NOLs")	21,100,000
Kansas [Member]
Operating Loss Carryforwards [Line Items]
Credit carryforwards	$ 4,600,000
Carryforwards expiration	2017
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Federal and state NOLs expiration period	Jan. 31, 2015
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Federal and state NOLs expiration period	Jan. 28, 2034