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VENTURE CAPITAL AND STRATEGIC EQUITY INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020	Dec. 26, 2020
Equity Method Investments and Joint Ventures [Abstract]
Venture capital investments	$ 174,420		$ 174,420		$ 197,100
Committed contribution	149,500		149,500
Amount funded for venture capital investments	105,200		105,200
Distributions received	18,200	$ 2,400	27,500	$ 3,300
Gains (losses) recognized related to venture capital investments	11,000	$ 23,900	(5,300)	$ 11,900
Strategic equity investments	$ 39,342		$ 39,342		$ 24,704

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