Debt and Credit Sources - Non-recourse Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Dec. 29, 2013	Mar. 29, 2020	Dec. 29, 2019
Debt Instrument [Line Items]
Non-recourse financing arrangements			$ 19,100
Arizona loan2
Debt Instrument [Line Items]
Non-recourse financing arrangements			6,053	$ 6,111
Arizona loan2 | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread		4.13%
County of San Diego
Debt Instrument [Line Items]
Non-recourse financing arrangements			13,087	3,004
AUO debt
Debt Instrument [Line Items]
Non-recourse financing arrangements			40,944	37,749
Line of credit facility, maximum borrowing capacity	$ 50,000
AUO debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread	1.50%
HSBC Financing Program
Debt Instrument [Line Items]
Non-recourse financing arrangements			5,000	21,993
Other debt
Debt Instrument [Line Items]
Non-recourse financing arrangements			$ 537	$ 1,831