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Intangbile assets (Details) - USD ($) $ in Thousands | Jan. 01, 2022 | Jan. 02, 2021
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Intangible Assets [Line Items] |  |
Indefinite Lived Intangible Assets | $ 53,133 | $ 55,349
Finite Lived Intangible Assets: | 905,138 | 986,417
Accumulated Amortization: | (560,470) | (568,086)
Total Intangible assets, less accumulated amortization | 397,801 | 473,680
Trade Names [Member] |  |
Intangible Assets [Line Items] |  |
Indefinite Lived Intangible Assets | 53,133 | 55,349
Routes [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 337,399 | 397,342
Accumulated Amortization: | (169,984) | (203,392)
Permits [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 475,520 | 494,191
Accumulated Amortization: | (336,020) | (315,246)
Non-compete agreements [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 645 | 3,300
Accumulated Amortization: | (441) | (2,981)
Trade Names [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 65,675 | 65,675
Accumulated Amortization: | (46,028) | (39,491)
Royalty, consulting land use and leasehold [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 25,899 | 25,909
Accumulated Amortization: | $ (7,997) | $ (6,976)

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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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