Acquisitions and Divestitures (Details) - USD ($) $ in Thousands			3 Months Ended
	Dec. 31, 2016	Jan. 29, 2016	Apr. 01, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 290,699		$ 290,687
Increase in goodwill			$ 2,000
Small Office Furniture Company
Acquired Finite-Lived Intangible Assets [Line Items]
Annual sales		$ 30,000
Cost of acquisition		34,100
Intangible assets		15,000
Goodwill		$ 14,000
Small Office Furniture Company | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible asset other than goodwill, useful life			3 years
Small Office Furniture Company | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible asset other than goodwill, useful life			10 years
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Acquired Finite-Lived Intangible Assets [Line Items]
Pre-tax non-cash charge	23,000
Long term note receivable	$ 10,000
Receivables			$ 500