Acquisitions, Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended			0 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Feb. 27, 2014	Apr. 30, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 15, 2014	Jun. 13, 2014	May 31, 2014	Mar. 14, 2014	May 31, 2013	Feb. 21, 2012	Jan. 16, 2015
Business Acquisition [Line Items]
Long-term purchase commitment, time period			6 years
Pre-tax loss on sale of business assets			$ 2,000,000
Proceeds from sale of aluminum extrusion assets, cash received		300,000
Proceeds from sale of aluminum extrusion assets, note receivable		7,200,000
Term of note receivable		4 years
Proceeds from first installment of note receivable			1,800,000	1,750,000	0	0
Present value of note receivable		6,400,000	4,800,000	4,800,000
Other Notes Payable, Term	3 years
EA Technologies, LLC
Business Acquisition [Line Items]
Cash consideration			6,800,000
Duncan Systems, Inc.
Business Acquisition [Line Items]
Annual sales of acquired entity							26,000,000
Purchase price							18,000,000
Duncan Systems, Inc. | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years			14 years
PowerGear and Kwikee Brands
Business Acquisition [Line Items]
Annual sales of acquired entity									28,000,000
Purchase price								35,500,000
PowerGear and Kwikee Brands | Patents
Business Acquisition [Line Items]
Estimated useful life in years			8 years
PowerGear and Kwikee Brands | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years			14 years
Star Designs, LLC
Business Acquisition [Line Items]
Annual sales of acquired entity					10,000,000
Purchase price										12,200,000
Star Designs, LLC | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years			14 years
Fortress Technologies LLC
Business Acquisition [Line Items]
Annual sales of acquired entity					3,000,000
Innovative Design Solutions, Inc
Business Acquisition [Line Items]
Annual sales of acquired entity					19,000,000
Business Acquisition, Revenue From Company Reported By Acquired Entity For Last Annual Period					15,000,000
Purchase price	35,900,000
Cash consideration	34,200,000
Innovative Design Solutions, Inc | Patents
Business Acquisition [Line Items]
Estimated useful life in years			10 years
Innovative Design Solutions, Inc | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years			12 years
Midstates Tool & Die and Engineering Inc.
Business Acquisition [Line Items]
Annual sales of acquired entity											2,000,000
RV Entry Door Operation
Business Acquisition [Line Items]
Annual sales of acquired entity						6,000,000
Purchase price												1,700,000
Cash consideration												1,200,000
RV Entry Door Operation | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years												7 years
Subsequent event | EA Technologies, LLC
Business Acquisition [Line Items]
Annual sales of acquired entity													17,000,000
Purchase price													$ 9,400,000