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Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 01, 2022 | Jan. 02, 2021
Goodwill [Roll Forward] |  |
Goodwill, gross beginning balance | $ 365,453 | $ 315,339
Accumulated impairment losses | (73,019) | (44,519)
Goodwill, net beginning balance | 292,434 | 270,820
Goodwill acquired during the year / measurement period adjustments | 10,655 | 50,114
Impairment losses | (5,750) | (28,500)
Goodwill, gross ending balance | 376,108 | 365,453
Accumulated impairment losses | (78,769) | (73,019)
Goodwill, net ending balance | 297,339 | 292,434
Workplace Furnishings |  |
Goodwill [Roll Forward] |  |
Goodwill, gross beginning balance | 168,477 | 128,677
Accumulated impairment losses | (72,876) | (44,376)
Goodwill, net beginning balance | 95,601 | 84,301
Goodwill acquired during the year / measurement period adjustments | (6,211) | 39,800
Impairment losses | (5,750) | (28,500)
Goodwill, gross ending balance | 162,266 | 168,477
Accumulated impairment losses | (78,626) | (72,876)
Goodwill, net ending balance | 83,640 | 95,601
Residential Building Products |  |
Goodwill [Roll Forward] |  |
Goodwill, gross beginning balance | 196,976 | 186,662
Accumulated impairment losses | (143) | (143)
Goodwill, net beginning balance | 196,833 | 186,519
Goodwill acquired during the year / measurement period adjustments | 16,866 | 10,314
Impairment losses | 0 | 0
Goodwill, gross ending balance | 213,842 | 196,976
Accumulated impairment losses | (143) | (143)
Goodwill, net ending balance | $ 213,699 | $ 196,833

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- 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)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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