Consolidated Statements of Comprehensive Earnings (Loss) - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 25,595	$ (4,462)
Other comprehensive earnings (loss), net of income taxes
Unrealized gains, net		573
Reclassification of net losses to earnings		134
Net changes related to cash flow hedges		707
Currency translation adjustment	(1,082)	1,456
Other comprehensive earnings (loss), net of income taxes	(1,082)	2,163
Comprehensive earnings (loss)	24,513	(2,299)
Comprehensive earnings (loss) attributable to non-controlling interests	(46)	21
Comprehensive earnings (loss) attributable to SunOpta Inc.	$ 24,559	$ (2,320)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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