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VENTURE CAPITAL AND STRATEGIC EQUITY INVESTMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019	Dec. 28, 2019
Equity Method Investments and Joint Ventures [Abstract]
Venture capital investments	$ 124,730		$ 124,730		$ 108,983
Committed contribution	130,400		130,400
Amount funded for venture capital investments	87,500		87,500
Dividends received	2,400	$ 900	3,300	$ 1,600
Foreign currency gains (losses) recognized	23,900	$ (4,300)	11,900	$ 6,300
Strategic equity investments	$ 17,087		$ 17,087		$ 13,996

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