Acquisitions, Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands			1 Months Ended						6 Months Ended
	Jun. 30, 2017	Feb. 01, 2017	Jun. 30, 2017	May 31, 2017	Feb. 28, 2017	May 31, 2016	Feb. 29, 2016	Jan. 31, 2016	Jun. 30, 2017
Business Acquisition [Line Items]
Other change in goodwill									$ 3,800
Metallarte S.p.A.
Business Acquisition [Line Items]
Percentage of interests acquired	100.00%		100.00%						100.00%
Total purchase price	$ 15,867
Cash consideration	$ 14,100
Metallarte S.p.A. | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life			15 years
Lexington
Business Acquisition [Line Items]
Total purchase price				$ 40,000
Cash consideration				$ 40,062
Lexington | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life				15 years
SessaKlein S.p.A.
Business Acquisition [Line Items]
Percentage of interests acquired					100.00%
Total purchase price		$ 11,424			$ 8,500
SessaKlein S.p.A. | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life		15 years
Project 2000
Business Acquisition [Line Items]
Percentage of interests acquired						100.00%
Total purchase price						$ 17,940
Cash consideration						$ 18,800
Project 2000 | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life						15 years
Flair Interiors
Business Acquisition [Line Items]
Cash consideration							$ 8,100
Flair Interiors | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life							15 years
Highwater Marine Furniture
Business Acquisition [Line Items]
Cash consideration								$ 10,000
Highwater Marine Furniture | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life								15 years