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VENTURE CAPITAL AND STRATEGIC EQUITY INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019	Dec. 28, 2019
Equity Method Investments and Joint Ventures [Abstract]
Venture capital investments	$ 142,998		$ 142,998		$ 108,983
Committed contribution	130,800		130,800
Amount funded for venture capital investments	92,000		92,000
Dividends received	6,300	$ 200	9,600	$ 1,800
Foreign currency gains (losses) recognized	19,900	$ (600)	31,600	$ 5,700
Strategic equity investments	$ 21,019		$ 21,019		$ 13,996

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