Discontinued Operations - Narrative (Details) - Matane Plant - Discontinued Operations, Disposed of by Sale $ in Millions	Nov. 30, 2019 USD ($) t
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross purchase price \| $	$ 175
Production capacity \| t	270,000

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Balance Type:	na
Period Type:	duration