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Goodwill and Other Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 365,453
Accumulated impairment losses, beginning balance	(73,019)
Goodwill, net, beginning balance	292,434
Goodwill acquired	1,250
Goodwill, gross, ending balance	366,703
Accumulated impairment losses, ending balance	(73,019)
Goodwill, net, ending balance	293,684
Workplace furnishings
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	168,477
Accumulated impairment losses, beginning balance	(72,876)
Goodwill, net, beginning balance	95,601
Goodwill acquired	0
Goodwill, gross, ending balance	168,477
Accumulated impairment losses, ending balance	(72,876)
Goodwill, net, ending balance	95,601
Residential building products
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	196,976
Accumulated impairment losses, beginning balance	(143)
Goodwill, net, beginning balance	196,833
Goodwill acquired	1,250
Goodwill, gross, ending balance	198,226
Accumulated impairment losses, ending balance	(143)
Goodwill, net, ending balance	$ 198,083

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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-Publisher FASB
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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

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