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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Jun. 27, 2020
Goodwill [Line Items]
Goodwill impairment losses	$ 0		$ 21,607,000
Impairment of definite-lived intangible assets	0
Impairment of indefinite-lived intangible assets	$ 0
Workplace furnishings
Goodwill [Line Items]
Goodwill impairment losses			$ 21,607,000
Trademarks and trade names | Workplace furnishings
Goodwill [Line Items]
Impairment of definite-lived intangible assets		$ 600,000
Customer lists and other | Workplace furnishings
Goodwill [Line Items]
Impairment of definite-lived intangible assets		8,200,000
Trade Names | Workplace furnishings
Goodwill [Line Items]
Impairment of indefinite-lived intangible assets		2,300,000
Reporting Unit One | Workplace furnishings
Goodwill [Line Items]
Goodwill impairment losses		14,100,000
Reporting Unit Two | Workplace furnishings
Goodwill [Line Items]
Goodwill impairment losses		$ 7,500,000

X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Name Accounting Standards Codification
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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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