Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 27, 2013	Jan. 29, 2012	Jan. 30, 2011
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 13,759	$ 17,011	$ 13,795
Additions based on tax positions related to the current year	695	835	449
Additions for tax positions of prior years	0	0	3,592
Reductions for tax positions of prior years	(647)	(4,087)	0
Reductions for settlements with tax authorities	(663)	0	(825)
Ending balance	$ 13,144	$ 13,759	$ 17,011

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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- Definition

The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

+ References

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

+ References

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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