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Goodwill and Other Intangible Assets - Narrative (Details)	3 Months Ended
	Sep. 29, 2018 USD ($)	Sep. 30, 2017 USD ($)	Dec. 30, 2017 USD ($)
Finite-Lived Intangible Assets [Line Items]
Gain on sale and license of intangible asset		$ 6,000,000
Carrying value		$ 0
Goodwill	$ 282,939,000		$ 279,505,000
Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill	96,439,000		$ 96,449,000
One Reporting Unit | Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill increase (decrease) for 100 basis point increase in discount rate	3,800,000
Goodwill increase (decrease) for 100 basis point decrease in terminal growth rate	1,800,000
Goodwill	$ 19,600,000
Discount Rate | One Reporting Unit | Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment test measurement input	0.135
Terminal Growth Rate | One Reporting Unit | Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment test measurement input	0.03
Minimum | Near Term Growth Rate | One Reporting Unit | Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment test measurement input	0.03
Maximum | Near Term Growth Rate | One Reporting Unit | Office Furniture
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment test measurement input	0.12

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