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INCOME TAXES - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2018	Dec. 27, 2017	Dec. 28, 2016
Income Tax Disclosure [Abstract]
Income taxes at U.S. federal statutory rate	$ 6,470	$ 56,103	$ 9,689
U.S. federal statutory income tax rate, percentage	21.00%	35.00%	34.00%
State and local income taxes, net of federal benefit	$ 797	$ 2,590	$ 1,461
State and local income taxes, net of federal benefit, percentage	2.60%	1.60%	5.10%
Foreign withholding taxes	$ 1,935	$ 942	$ 667
Foreign withholding taxes, percentage	6.30%	0.60%	2.30%
Tax credits	$ (2,151)	$ (1,230)	$ (779)
Tax credits, percentage	(7.00%)	(0.80%)	(2.70%)
Non-controlling interest	$ (1,908)	$ (3,273)	$ (3,765)
Non-controlling interest, percentage	(6.20%)	(2.00%)	(13.20%)
Remeasurement of deferred tax assets in connection with the enactment of the TCJA	$ 0	$ 138,636	$ 0
Remeasurement of deferred tax assets in connection with the enactment of the TCJA, percentage	0.00%	86.50%	0.00%
Remeasurement of deferred tax assets in connection with other tax rate changes	$ 3,794	$ 1,657	$ (1,353)
Remeasurement of deferred tax assets in connection with other tax rate changes, percentage	12.30%	1.00%	(4.70%)
Remeasurement of liabilities under tax receivable agreement in connection with the enactment of the TCJA	$ 0	$ (44,051)	$ 0
Remeasurement of tax receivable agreement liability in connection with the enactment of the TCJA, percentage	(0.00%)	(27.40%)	(0.00%)
Other	$ (75)	$ 35	$ 430
Other, percentage	(0.20%)	0.00%	1.50%
Income tax expense	$ 8,862	$ 151,409	$ 6,350
Effective income tax rate, percentage	28.80%	94.50%	22.30%

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