Total Plan Expense and Other Amounts Recognized in Accumulated Other Comprehensive Loss (Detail) (Noncontributory Pension Plan, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Noncontributory Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost on projected benefit obligation	$ 669	$ 651	$ 661
Expected return on plan assets	(1,002)	(937)	(814)
Amortization of unrecognized loss	591	680	669
Net pension cost	258	394	516
Other changes recognized in other comprehensive loss, before taxes
Unrecognized losses at the beginning of the year	6,614	7,868	8,097
Net periodic pension cost	(258)	(394)	(516)
Employer contributions	468	421	723
Change in plan assets and benefit obligations	2,922	(1,281)	(436)
Unrecognized losses at the end of year	$ 9,746	$ 6,614	$ 7,868