Summary of Operating Segments by Geographic Locations (Detail) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Disclosure of geographical areas [Line Items]
Revenue	$ 935,753	$ 1,541,320
Total assets	2,898,878	3,269,840
United States [Member]
Disclosure of geographical areas [Line Items]
Revenue	444,052	871,651
Total assets	1,339,945	1,560,523
Canada [Member]
Disclosure of geographical areas [Line Items]
Revenue	305,613	459,377
Total assets	1,053,921	1,133,591
International [Member]
Disclosure of geographical areas [Line Items]
Revenue	186,088	210,292
Total assets	$ 505,012	$ 575,726

The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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+ Details