Supplemental Information - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Supplemental Information [Line Items]
Operating expense	$ 1,248,686	$ 1,204,548
General and administrative expense	132,421	122,188
Depreciation and amortization gain on asset disposal loss on asset decommissioning and reversal of impairment of property plant and equipment [Member]
Supplemental Information [Line Items]
Operating expense	287,000	269,000
General and administrative expense	$ 6,000	$ 14,000

The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 99
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_99&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 103
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_103&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_CostOfSales
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration