Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Income Taxes [Line Items]
Deferred tax assets, total	$ 48.2
Deferred tax assets, valuation allowance	3.6
Deferred tax assets, net operating loss carryforwards	28.4
Deferred tax assets, deferred gain on sale-leaseback	7.4
Effective income tax rate on income from continuing operations	43.90%	38.60%
Federal
Income Taxes [Line Items]
Net operating loss carryforwards	77.4
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards	43.0
Federal And State Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards, expiration year	2033
Net operating loss carryforwards, stock compensation deductions	$ 12.7