Commitments And Contingencies (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Nov. 01, 2014
Redfield Site [Member]
Loss Contingencies [Line Items]
Liability for on-site remediation, discounted rate	4.80%
On-site remediation liability, undiscounted basis	$ 15.7
Expected on-site remediation liability, year one	0.2
Expected on-site remediation liability, year two	0.2
Expected on-site remediation liability, year three	0.2
Expected on-site remediation liability, year four	0.2
Expected on-site remediation liability, year five	0.2
Expected on-site remediation liability, thereafter	14.7
Cumulative expenditures for both on-site and off-site remediation	26.6
Reserve for anticipated future remediation activities	9.8
Reserve for anticipated future remediation activities for on-site remediation	5.1
Reserve for anticipated future remediation activities for off-site remediation	4.7
Redfield Site Other Liabilities [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies in other liabilities	8.9
Redfield Site Other Accrued Expense [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies in other accrued expenses	0.9
New York Tannery And Two Associated Landfills [Member]
Loss Contingencies [Line Items]
Liability for on-site remediation, discounted rate	6.40%
Expected on-site remediation liability, year one	0.2
Expected on-site remediation liability, year two	0.2
Expected on-site remediation liability, year three	0.2
Expected on-site remediation liability, year four	0.2
Expected on-site remediation liability, year five	0.2
Expected on-site remediation liability, thereafter	1.0
Accrual for environmental loss contingencies in other liabilities	1.2
Accrual for environmental loss contingencies in other accrued expenses	0.2
Number of associated landfills for which remediation efforts are completed	2
Accrued liability to complete the cleanup, maintenance and monitoring at all sites	1.4
Accrued liability on an undiscounted basis	$ 2.0