Pension Plans and Other Retirement Benefits - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Pension Plans and Other Retirement Benefits [Line Items]
Minimum percentage of pension liability				80.00%
Voluntary contribution to funded plan	$ 25,000,000
Anticipated employer's contribution to fund current benefit and expense payments under the unfunded plan in fiscal 2015				3,400,000
Amortization from other comprehensive income to net income		864,000	863,000	2,600,000	2,600,000
Post Retirement Medical Plan
Pension Plans and Other Retirement Benefits [Line Items]
Estimated postretirement medical plan, long-term liability		$ 1,200,000		$ 1,200,000