LEASES - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 26, 2018 USD ($) lease	Dec. 27, 2017 USD ($) lease	Dec. 28, 2016 USD ($)
Leases [Abstract]
Number of sale leaseback transactions, accounting owner | lease	24	23
Common area maintenance costs, real estate taxes, and other occocupancy costs not included in rent expense | $	$ 6,479	$ 4,570	$ 3,229
Number of sale leaseback transactions | lease	1	11
Deemed landlord financing | $	$ 20,846	$ 14,518