Pension Plan's Funded Status (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
Change in benefit obligation:
Balance at beginning of period	$ 15,685	$ 16,154
Benefits and expenses paid	(623)	(587)
Interest costs	669	651	661
Settlements	(226)	(17)
Actuarial (gain) loss	3,422	(516)
Balance at end of year	18,927	15,685	16,154
Change in fair value of plan assets
Balance at beginning of period	12,625	11,813
Actual return on plan assets	701	995
Employer contributions	468	421	723
Settlements	(226)	(17)
Benefits and expenses paid	(623)	(587)
Balance at end of period	12,945	12,625	11,813
Reconciliation of Funded Status
Projected benefit obligation	18,927	15,685	16,154
Fair value of plan assets	12,945	12,625	11,813
Unfunded Status	(5,982)	(3,060)
Balance Sheet Classification
Other long-term liabilities	$ 5,982	$ 3,060