Acquisitions, Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended							3 Months Ended	12 Months Ended
	Oct. 31, 2016	May 31, 2016	Feb. 29, 2016	Jan. 31, 2016	Aug. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Jun. 30, 2015
Atwood
Business Acquisition [Line Items]
Annual sales of acquired entity									$ 30,000
Signature Seating
Business Acquisition [Line Items]
Annual sales of acquired entity										$ 16,000
Cash consideration					$ 16,000
Total purchase price					$ 19,556
Signature Seating | Customer Relationships
Business Acquisition [Line Items]
Estimated useful life in years					15 years
Project 2000
Business Acquisition [Line Items]
Percentage of interests acquired		100.00%
Annual sales of acquired entity									$ 12,000
Cash consideration		$ 18,800
Total purchase price		$ 17,459
Spectal Industries
Business Acquisition [Line Items]
Annual sales of acquired entity						$ 25,000
Cash consideration						22,335
Total purchase price						$ 23,546
Spectal Industries | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life						15 years
EA Technologies
Business Acquisition [Line Items]
Annual sales of acquired entity							$ 17,000
Cash consideration							$ 9,248	$ 6,600
Flair Interiors
Business Acquisition [Line Items]
Annual sales of acquired entity			$ 25,000
Cash consideration			$ 8,100
Flair Interiors | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life		15 years	15 years
Highwater Marine Furniture
Business Acquisition [Line Items]
Annual sales of acquired entity				$ 20,000
Cash consideration				$ 10,000
Highwater Marine Furniture | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life				15 years
Subsequent Event | Atwood
Business Acquisition [Line Items]
Total purchase price	$ 12,500