Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Changes in Non-Cash Working Capital, Net of Businesses Acquired or Sold
Accounts receivable	$ (7,822)	$ 4,353	$ (2,086)	$ (2,608)
Inventories	28,722	3,777	(1,499)	(31,177)
Income tax recoverable/payable	(963)	(94)	(1,811)	2,113
Prepaid expenses and other current assets	(1,856)	7,404	(9,827)	6,350
Accounts payable and accrued liabilities	(12,556)	(8,367)	(5,715)	(2,336)
Customer and other deposits	(483)	(3,409)	(1,208)	(4,113)
Changes in Non-Cash Working Capital, Net of Businesses Acquired or Sold, Total	5,042	3,664	(22,146)	(31,771)
Non-Cash Investing and Financing Activities
Accrued post-closing adjustments payable in cash related to the sale of soy and corn business	(1,106)	0	(1,106)	0
Accrued cash dividends on Series A Preferred Stock	$ (1,700)	$ (1,700)	$ (1,700)	$ (1,700)

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Represents the amount of dividends, preferred stock, cash, accrued and unpaid.

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The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The increase (decrease) during the reporting period of all taxes owed but not paid, including income, property and other taxes.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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The increase (decrease) during the reporting period in the amount of (a) prepayments by customers for goods or services to be provided at a later date, (b) the amount of customer money held in customer accounts, including security deposits, collateral for current or future transactions, initial payment of the cost of an acquisition or for the right to enter into a contract or agreement, (c) the increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received or recorded as a receivable, or (d) some combination of (a), (b), and (c).

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

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Amount of increase (decrease) in prepaid expenses, and assets classified as other.

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The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.

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