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LEASES - Schedule of Future Minimum Lease Payments (Details) $ in Thousands	12 Months Ended
	Dec. 26, 2018 USD ($) lease	Dec. 27, 2017 lease
Operating Leases
2018	$ 31,785
2019	32,819
2020	33,363
2021	33,934
2022	33,588
Thereafter	174,145
Total minimum lease payments	339,634
Deemed Landlord Financing
2018	4,487
2019	4,755
2020	4,816
2021	4,889
2022	5,085
Thereafter	22,659
Total minimum lease payments	$ 46,691
Number of sale leaseback transactions | lease	1	11

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