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Intangbile assets (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Jan. 02, 2016
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Intangible Assets [Line Items] |  |
Indefinite Lived Intangible Assets | $ 51,687 | $ 52,466
Finite Lived Intangible Assets: | 961,427 | 982,602
Accumulated Amortization: | (301,187) | (252,719)
Total Intangible assets, less accumulated amortization | 711,927 | 782,349
Trade Names [Member] |  |
Intangible Assets [Line Items] |  |
Indefinite Lived Intangible Assets | 51,687 | 52,466
Routes [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 374,989 | 390,888
Accumulated Amortization: | (105,934) | (99,819)
Permits [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 493,311 | 494,754
Accumulated Amortization: | (170,165) | (134,752)
Non-compete agreements [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 3,638 | 6,996
Accumulated Amortization: | (1,788) | (4,628)
Trade Names [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 76,033 | 75,825
Accumulated Amortization: | (21,042) | (11,959)
Royalty, consulting land use and leasehold [Member] |  |
Intangible Assets [Line Items] |  |
Finite Lived Intangible Assets: | 13,456 | 14,139
Accumulated Amortization: | $ (2,258) | $ (1,561)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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- 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/presentationRef -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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