Acquisitions, Goodwill And Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets
Accumulated amortization	$ 66,627	$ 56,802
Net balance	16,055	12,704	$ 10,008
Indefinite-lived Intangible Assets
Total gross cost	167,562	153,761
Total net balance	100,935	96,959
Purchased Research and Development
Indefinite-lived Intangible Assets
Gross cost and net balance	4,687	4,687
RV Segment
Indefinite-lived Intangible Assets
Total net balance	100,418	95,075
MH Segment
Indefinite-lived Intangible Assets
Total net balance	517	1,884
Customer Relationships
Finite-Lived Intangible Assets
Gross cost	94,560	81,260
Accumulated amortization	30,514	27,553
Net balance	$ 64,046	$ 53,707
Customer Relationships | Minimum
Finite-Lived Intangible Assets
Estimated useful life in years	6 years	6 years
Customer Relationships | Maximum
Finite-Lived Intangible Assets
Estimated useful life in years	16 years	16 years
Patents
Finite-Lived Intangible Assets
Gross cost	$ 54,293	$ 54,333
Accumulated amortization	28,255	22,389
Net balance	$ 26,038	$ 31,944
Patents | Minimum
Finite-Lived Intangible Assets
Estimated useful life in years	3 years	3 years
Patents | Maximum
Finite-Lived Intangible Assets
Estimated useful life in years	19 years	19 years
Tradenames
Finite-Lived Intangible Assets
Gross cost	$ 8,935	$ 9,173
Accumulated amortization	4,751	4,525
Net balance	$ 4,184	$ 4,648
Tradenames | Minimum
Finite-Lived Intangible Assets
Estimated useful life in years	3 years	3 years
Tradenames | Maximum
Finite-Lived Intangible Assets
Estimated useful life in years	15 years	15 years
Non-compete Agreements
Finite-Lived Intangible Assets
Gross cost	$ 4,493	$ 3,948
Accumulated amortization	2,800	2,233
Net balance	$ 1,693	$ 1,715
Non-compete Agreements | Minimum
Finite-Lived Intangible Assets
Estimated useful life in years	3 years	3 years
Non-compete Agreements | Maximum
Finite-Lived Intangible Assets
Estimated useful life in years	6 years	6 years
Other
Finite-Lived Intangible Assets
Gross cost	$ 594	$ 360
Accumulated amortization	307	102
Net balance	$ 287	$ 258
Other | Minimum
Finite-Lived Intangible Assets
Estimated useful life in years	2 years	2 years
Other | Maximum
Finite-Lived Intangible Assets
Estimated useful life in years	12 years	12 years