Intangbile assets

12 Months Ended

Jan. 02, 2021

The gross carrying amount of intangible assets not subject to amortization and intangible assets subject to amortization is as follows (in thousands):


	January 2, 2021		December 28, 2019
Indefinite Lived Intangible Assets
Trade names	$	55,349	$	52,733
	55,349		52,733
Finite Lived Intangible Assets:
Routes	397,342		382,263
Permits	494,191		483,593
Non-compete agreements	3,300		3,840
Trade names	65,675		65,670
Royalty, product development, consulting, land use rights and leasehold	25,909		20,737
	986,417		956,103
Accumulated Amortization:
Routes	(203,392)		(169,050)
Permits	(315,246)		(272,213)
Non-compete agreements	(2,981)		(3,111)
Trade names	(39,491)		(32,890)
Royalty, product development, consulting, land use rights and leasehold	(6,976)		(5,178)
	(568,086)		(482,442)
Total Intangible assets, less accumulated amortization	$	473,680	$	526,394

Gross intangible routes, permits, trade names, non-compete agreements and other intangibles changed due to acquired intangibles of approximately $6.5 million, a decrease of approximately $5.8 million as a result of asset retirements and a decrease of approximately $3.0 million due to asset impairment and the remaining change is due to foreign exchange impact. Amortization expense for the three years ended January 2, 2021, December 28, 2019 and December 29, 2018, was approximately $74.0 million, $73.6 million and $75.2 million, respectively. Amortization expense for the next five fiscal years is estimated to be $67.9 million, $65.9 million, $64.8 million, $44.2 million and $36.7 million.