INCOME TAXES - Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Deferred tax assets:
Compensation	$ 40,582	$ 36,724
Accruals and reserves	13,687	13,183
Net operating loss and credit carryforwards	367,269	35,679
Operating lease liability	33,785
Other	7,181	5,060
Valuation allowance	(309,962)	(9,788)
Total deferred tax assets	152,542	80,858
Deferred tax liabilities:
Goodwill and other intangibles	(174,847)	(154,743)
Depreciation related	(29,317)	(19,373)
Venture capital investments	(12,806)	(10,557)
Tax on unremitted earnings	(17,282)	(14,140)
Right-of-use assets	(34,953)
Other	(5,961)	(2,296)
Total deferred tax liabilities	(275,166)	(201,109)
Net deferred taxes	$ (122,624)	$ (120,251)