Investments, Debt and Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity Securities without Readily Determinable Fair Value, Amount	$ 48,626	$ 29,228
Equity investments, carried at cost minus impairment, if any	27,438	29,228
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	8,200
Equity Securities, FV-NI and without Readily Determinable Fair Value	21,188	0
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	35	8,200
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount		$ 4,900
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount	$ 4,900