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Lease Right-of-Use Assets - Summary of Reconciliation of Lease Right of Use Assets (Detail) - CAD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance $ 49,887 $ 54,184 $ 54,184 $ 60,288  
Additions to right-of-use assets 1,600 700      
Depreciation charge     (3,800) (3,900) $ (3,800)
Disposal 400 0      
Currency translation effects 200 300      
Ending Balance 47,280   49,887 54,184 60,288
Gross carrying amount [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance 82,739 75,602 75,602 72,567 31,985
Additions to right-of-use assets     10,875 8,312 41,475
Disposal     (3,227) (4,890) (226)
Currency translation effects     (511) (387) (667)
Ending Balance     82,739 75,602 72,567
Accumulated depreciation, amortisation and impairment [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance (32,852) (21,418) (21,418) (12,279)  
Depreciation charge     (13,842) (13,707) (12,655)
Disposal     2,249 4,292 226
Currency translation effects     159 276 150
Ending Balance     (32,852) (21,418) (12,279)
Land and buildings [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance 38,182 42,715 42,715 47,435  
Ending Balance     38,182 42,715 47,435
Land and buildings [member] | Gross carrying amount [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance 58,380 56,242 56,242 55,463 23,017
Additions to right-of-use assets     4,097 3,923 32,896
Disposal     (1,644) (3,069) (74)
Currency translation effects     (315) (75) (376)
Ending Balance     58,380 56,242 55,463
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance (20,198) (13,527) (13,527) (8,028)  
Depreciation charge     (8,350) (8,106) (8,198)
Disposal     1,535 2,513 74
Currency translation effects     144 94 96
Ending Balance     (20,198) (13,527) (8,028)
Equipment [Member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance 11,705 11,469 11,469 12,853  
Ending Balance     11,705 11,469 12,853
Equipment [Member] | Gross carrying amount [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance 24,359 19,360 19,360 17,104 8,968
Additions to right-of-use assets     6,778 4,389 8,579
Disposal     (1,583) (1,821) (152)
Currency translation effects     (196) (312) (291)
Ending Balance     24,359 19,360 17,104
Equipment [Member] | Accumulated depreciation, amortisation and impairment [member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Beginning Balance $ (12,654) $ (7,891) (7,891) (4,251)  
Depreciation charge     (5,492) (5,601) (4,457)
Disposal     714 1,779 152
Currency translation effects     15 182 54
Ending Balance     $ (12,654) $ (7,891) $ (4,251)