Debt and Credit Sources - Schedule of Debt (Details) - USD ($)	Apr. 03, 2022	Jan. 02, 2022	Dec. 31, 2015
Debt Instrument [Line Items]
Face Value	$ 533,623,000	$ 535,795,000
Short-term	531,850,000	109,568,000
Long-term	338,000	424,057,000
Total	532,188,000	533,625,000
Total recourse debt
Debt Instrument [Line Items]
Face Value	532,747,000	534,320,000
Short-term	531,312,000	108,473,000
Long-term	0	423,677,000
Total	531,312,000	532,150,000
Total non-recourse debt
Debt Instrument [Line Items]
Face Value	876,000	1,475,000
Short-term	538,000	1,095,000
Long-term	338,000	380,000
Total	876,000	1,475,000
Asset-Backed Loan | Total recourse debt
Debt Instrument [Line Items]
Face Value	60,132,000	60,800,000
Short-term	60,019,000	60,579,000
Long-term	0	0
Total	60,019,000	60,579,000
Safe Harbor Loan | Total recourse debt
Debt Instrument [Line Items]
Face Value	47,624,000	48,529,000
Short-term	47,306,000	47,894,000
Long-term	0	0
Total	47,306,000	47,894,000
Vendor Financing and Other Debt | Total non-recourse debt
Debt Instrument [Line Items]
Face Value	876,000	1,475,000
Short-term	538,000	1,095,000
Long-term	338,000	380,000
Total	876,000	1,475,000
Convertible Debt | 4.00% debentures due 2023
Debt Instrument [Line Items]
Interest rate			4.00%
Face Value	424,991,000	424,991,000	$ 425,000,000
Convertible Debt | 4.00% debentures due 2023 | Total recourse debt
Debt Instrument [Line Items]
Face Value	424,991,000	424,991,000
Short-term	423,987,000	0
Long-term	0	423,677,000
Total	$ 423,987,000	$ 423,677,000