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Commitments and Contingencies - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Mar. 09, 2015	May 02, 2015	May 03, 2014	Jan. 31, 2015
Operating Leases
Rent expense		$ 9,755us-gaap_LeaseAndRentalExpense	$ 8,894us-gaap_LeaseAndRentalExpense
Loss contingency trial start date		Mar. 02, 2015
Loss contingency trial end date		Mar. 06, 2015
Trial award against defendants to the action	11,887us-gaap_LossContingencyDamagesAwardedValue
Litigation Settlement, Expense				$ 4,000us-gaap_LitigationReserve
Treasury yield, percentage		0.22%spwh_TreasuryYield

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Treasury yield.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

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- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

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Amount of damages awarded to the plaintiff in the legal matter.

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