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Intangible Assets | 6 Months Ended
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Jun. 30, 2018
Intangible Asset Disclosure Text Block [Abstract] |
Intangible Assets | Intangible Assets The gross carrying amount of intangible assets not subject to amortization and intangible assets subject to amortization is as follows (in thousands):
| June 30, 2018 |  | December 30, 2017
Indefinite Lived Intangible Assets |  |  |
Trade names | $ | 53,900 |  |  | $ | 54,682 |
| 53,900 |  |  | 54,682 |
Finite Lived Intangible Assets: |  |  |  |  |
Routes | 366,496 |  |  | 397,808 |
Permits | 490,492 |  |  | 512,659 |
Non-compete agreements | 3,750 |  |  | 3,963 |
Trade names | 72,753 |  |  | 76,558 |
Royalty, consulting, land use rights and leasehold | 14,353 |  |  | 14,666 |
| 947,844 |  |  | 1,005,654 |
Accumulated Amortization: |  |  |
Routes | (132,786 | ) |  | (136,592 | )
Permits | (221,995 | ) |  | (211,264 | )
Non-compete agreements | (2,252 | ) |  | (2,387 | )
Trade names | (30,149 | ) |  | (30,235 | )
Royalty, consulting, land use rights and leasehold | (3,684 | ) |  | (3,358 | )
| (390,866 | ) |  | (383,836 | )
Total Intangible assets, less accumulated amortization | $ | 610,878 |  |  | $ | 676,500 |
Gross intangible routes, permits, trade names, non-compete agreements and other intangibles partially decreased in fiscal 2018 as a result of approximately $5.5 million of asset retirements, $44.6 million from the TRS Sale and increased approximately $15.9 million from the Kruger Acquisition. Amortization expense for the three and six months ended June 30, 2018 and July 1, 2017, was approximately $18.9 million, $19.3 million and $38.4 million and $38.4 million, respectively.

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- Definition Intangible Asset Disclosure Text Block [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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