Acquisitions, Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands		1 Months Ended											3 Months Ended	12 Months Ended
	Feb. 01, 2017	Nov. 30, 2016	May 31, 2016	Feb. 29, 2016	Jan. 31, 2016	Aug. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Aug. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Feb. 28, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition
Note payable term (in years)												3 years
Camping Connection, Inc.
Business Acquisition
Purchase price		$ 2,000
Atwood Mobile Products, LLC
Business Acquisition
Purchase price		12,500
Cash consideration		$ 12,463
Atwood Mobile Products, LLC | Customer Relationships
Business Acquisition
Weighted average useful life of acquired intangible assets		15 years
Project 2000
Business Acquisition
Percentage of outstanding shares acquired			100.00%
Purchase price			$ 17,459
Cash consideration			$ 18,800
Project 2000 | Customer Relationships
Business Acquisition
Weighted average useful life of acquired intangible assets			15 years
Flair Interiors
Business Acquisition
Cash consideration				$ 8,100
Flair Interiors | Customer Relationships
Business Acquisition
Weighted average useful life of acquired intangible assets				15 years
Highwater
Business Acquisition
Cash consideration					$ 10,000
Highwater | Customer Relationships
Business Acquisition
Weighted average useful life of acquired intangible assets					15 years
Signature Seating
Business Acquisition
Purchase price						$ 19,556
Cash consideration						$ 16,000
Signature Seating | Customer Relationships
Business Acquisition
Estimated useful life in years						15 years
Spectal Industries, Inc.
Business Acquisition
Purchase price							$ 23,546
Cash consideration							$ 22,335
Spectal Industries, Inc. | Customer Relationships
Business Acquisition
Estimated useful life in years							15 years
EA Technologies, LLC
Business Acquisition
Purchase price								$ 9,200
Cash consideration								$ 9,248						$ 6,600
Duncan Systems, Inc.
Business Acquisition
Purchase price									$ 19,914
Cash consideration									$ 18,000
Duncan Systems, Inc. | Customer Relationships
Business Acquisition
Estimated useful life in years													14 years
PowerGear and Kwikee Brands
Business Acquisition
Purchase price										$ 35,500
Cash consideration										$ 35,500
PowerGear and Kwikee Brands | Patents
Business Acquisition
Estimated useful life in years													8 years
PowerGear and Kwikee Brands | Customer Relationships
Business Acquisition
Estimated useful life in years													14 years
Star Designs, LLC
Business Acquisition
Purchase price											$ 12,200
Cash consideration											$ 12,232
Star Designs, LLC | Customer Relationships
Business Acquisition
Estimated useful life in years													14 years
Innovative Design Solutions, Inc
Business Acquisition
Purchase price												$ 36,624
Consideration transferred total, less future payments												35,900
Cash consideration												$ 34,175
Innovative Design Solutions, Inc | Patents
Business Acquisition
Estimated useful life in years													10 years
Innovative Design Solutions, Inc | Customer Relationships
Business Acquisition
Estimated useful life in years													12 years
Subsequent Event | Sessa Klein S.p.A.
Business Acquisition
Percentage of outstanding shares acquired	100.00%
Purchase price	$ 8,500
Operating Segments | OEM Segment
Business Acquisition
Accumulated impairment															$ (50,500)