Commitments And Contingencies (Details)	3 Months Ended	12 Months Ended
	Jan. 30, 2016 USD ($)	Jan. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Estimated Litigation Liability	$ 1,500,000	$ 1,500,000
Loss Contingency, Range of Possible Loss, Minimum	1,000,000
Redfield Site [Member]
Loss Contingencies [Line Items]
Cumulative expenditures for both on-site and off-site remediation		27,900,000
Reserve for anticipated future remediation activities	9,800,000	9,800,000
Reserve for anticipated future remediation activities for on-site remediation	5,000,000	5,000,000
Reserve for anticipated future remediation activities for off-site remediation	$ 4,800,000	$ 4,800,000
Liability for on-site remediation, discounted rate	4.80%	4.80%
On-site remediation liability, undiscounted basis	$ 15,200,000	$ 15,200,000
Expected on-site remediation liability, year one	200,000	200,000
Expected on-site remediation liability, year two	200,000	200,000
Expected on-site remediation liability, year three	200,000	200,000
Expected on-site remediation liability, year four	200,000	200,000
Expected on-site remediation liability, year five	200,000	200,000
Expected on-site remediation liability, thereafter	14,200,000	14,200,000
Redfield Site Other Liabilities [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies in other liabilities	9,000,000	9,000,000
Redfield Site Other Accrued Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies in other accrued expenses	800,000	800,000
New York Tannery And Two Associated Landfills [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies in other liabilities	1,100,000	1,100,000
Accrual for environmental loss contingencies in other accrued expenses	$ 200,000	$ 200,000
Liability for on-site remediation, discounted rate	6.40%	6.40%
Expected on-site remediation liability, year one	$ 200,000	$ 200,000
Expected on-site remediation liability, year two	200,000	200,000
Expected on-site remediation liability, year three	200,000	200,000
Expected on-site remediation liability, year four	200,000	200,000
Expected on-site remediation liability, year five	200,000	200,000
Expected on-site remediation liability, thereafter	600,000	$ 600,000
Number of associated landfills for which remediation efforts are completed		2
Accrued liability to complete the cleanup, maintenance and monitoring at all sites	1,300,000	$ 1,300,000
Accrued liability on an undiscounted basis	$ 1,600,000	$ 1,600,000