Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Aug. 03, 2013	Jul. 28, 2012
Income Taxes [Line Items]
Deferred tax assets, total	$ 49.0
Deferred tax assets, valuation allowance	3.5
Deferred tax assets, net operating loss carryforwards	31.3
Deferred tax assets, deferred gain on sale-leaseback	7.2
Effective income tax rate on income from continuing operations	26.10%	40.40%
Federal
Income Taxes [Line Items]
Net operating loss carryforwards	85.6
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards	47.0
Federal And State Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards, expiration year	2033
Net operating loss carryforwards, stock compensation deductions	$ 13.0