Supplemental Cash Flow Information (Disclosure of supplemental cash flow information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Changes in Operating Assets and Liabilities
Accounts receivable	$ 14,416	$ 5,118	$ (1,019)	$ (10,385)
Inventories	(43,924)	(64,514)	(41,756)	(82,108)
Accounts payable and accrued liabilities	13,571	7,420	27,111	14,920
Other operating assets and liabilities	(6,515)	1,654	(3,507)	5,595
Changes in operating assets and liabilities, total	(22,452)	(50,322)	(19,171)	(71,978)
Non-Cash Investing and Financing Activities
Change in additions to property, plant and equipment included in accounts payable and accrued liabilities	337	1,397	(5,439)	(617)
Change in accounts payable and accrued liabilities related to discontinued operations	(6,324)	0	0	(13,380)
Change in accrued dividends on preferred stock	0	0	0	(1,769)
Change in accrued debt issuance costs	$ 0	$ 0	$ 0	$ (1,690)