Business Acquisitions and Investments - Narrative (Details) (USD $)	3 Months Ended			0 Months Ended	3 Months Ended				0 Months Ended	3 Months Ended	0 Months Ended							3 Months Ended
	Mar. 01, 2014	Mar. 02, 2013	Nov. 30, 2013	Dec. 16, 2013 Air Filtrations Segment of General Electric [Member] employee	Mar. 01, 2014 Air Filtrations Segment of General Electric [Member]	Mar. 02, 2013 Air Filtrations Segment of General Electric [Member]	Dec. 03, 2013 Bekaert Advanced Filtration SA - Belgium [Member]	Dec. 03, 2013 Bekaert Advanced Filtration SA - Indonesia [Member]	Dec. 03, 2013 Bekaert Business [Member] employee	Mar. 01, 2014 Bekaert Business [Member]	May 08, 2013 Modular [Member]	May 09, 2012 Modular [Member]	May 09, 2012 Modular [Member]	Dec. 16, 2013 Term Loan [Member] Air Filtrations Segment of General Electric [Member]	Dec. 16, 2013 Revolving Credit Facility [Member] Air Filtrations Segment of General Electric [Member]	Mar. 01, 2014 Equity Method Investee [Member]	Nov. 30, 2013 Equity Method Investee [Member]	Mar. 01, 2014 Cost-method Investments [Member]	Nov. 30, 2013 Cost-method Investments [Member]
Business Acquisition [Line Items]
Net sales					$ 45,378,000					$ 2,777,000
Number of employees in acquired business				700					170
Net assets acquired				257,706,000
Net assets acquired	262,741,000	0							7,297,000
Gross payments made to acquire business				261,152,000							1,530,000
Cash acquired from acquisition				3,446,000
Debt instrument, face amount														100,000,000
Line of credit, amount outstanding															50,000,000
Goodwill	316,294,000		241,299,000	72,697,000
Operating profit (loss)					(1,048,000)
Transaction costs						3,600,000
Percentage of outstanding shares acquired							100.00%	100.00%				100.00%	100.00%
Purchase price excluding cash acquired													7,875,000
Acquired finite-lived intangible assets				133,020,000					2,057,000
Bargain purchase gain	(2,815,000)	0
Gross profit	96,587,000	81,486,000			31,266,000	33,815,000				(251,000)
Initial payment made at acquisition date												5,237,000
Ownership percentage																30.00%
Additional investment made, amount																		473,000
Investment-related liabilities																21,000	21,000
Equity method investments																3,065,000	3,125,000
Cost method investment, ownership percentage																		15.65%
Cost method investments																		$ 2,677,000	$ 2,204,000