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Financial Instruments - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2022 CAD ($) | Jun. 30, 2021 CAD ($) | Jun. 30, 2022 CAD ($) | Jun. 30, 2021 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2019 CAD ($) | Mar. 31, 2022 CAD ($) | Mar. 31, 2021 CAD ($) | Dec. 31, 2018 CAD ($)
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial assets at fair value | $ 300 |  | $ 300 |  | $ 300 |  |  |  |  |
Cumulative estimated gain losses on termination of forward contracts |  |  |  |  | 100 |  |  |  |  |
Gain losses on cash flow hedges net of tax | 205 | $ 78 | $ 60 | $ 150 | 247 | $ 545 | $ (815) |  |  |
Accumulated fair value hedge adjustment on hedged item included in carrying amount liabilities |  |  |  |  | $ 200 | 500 | 900 |  |  |
Percentage change in rate of interest percentage |  |  | 1.00% |  | 1.00% |  |  |  |  |
Estimated increase decrease in annual interest expense |  |  | $ 800 |  | $ 700 |  |  |  |  |
Cash and cash equivalents | 147,078 | $ 98,972 | 147,078 | $ 98,972 | 172,758 | 95,676 | $ 96,255 | $ 133,214 | $ 110,642 | $ 326,864
Financial liabilities, at fair value | 200 |  | 200 |  | 180 | 371 |  |  |  |
Bank And Asset Based Facilities [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Loans received | 78,400 |  | 78,400 |  | 67,900 |  |  |  |  |
Debt instrument unused borrowing capacity | 678,700 |  | $ 678,700 |  | $ 681,500 |  |  |  |  |
Bank Facility Asset Facility And Notes [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Net debt to earnings before interest tax depreciation and amortization |  |  | 36 |  | 1 |  |  |  |  |
Maximum net debt to earnings before interest tax depreciation and amortization |  |  | 3 |  | 3 |  |  |  |  |
Actual interest coverage ratio |  |  | 9 |  | 8 |  |  |  |  |
Minimum interest coverage ratio |  |  | 3 |  | 3 |  |  |  |  |
Investment In Preferred Shares [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial assets at fair value |  |  |  |  | $ 27,500 | 25,700 |  |  |  |
Investment In Preferred Shares [Member] | Long Term Receivables [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial assets at amortized costs |  |  |  |  | $ 24,200 | $ 22,000 |  |  |  |
Bottom of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Percentage of entities revenue |  |  |  |  | 10.00% | 10.00% |  |  |  |
Percentage of accounts receivable and contract assets |  |  |  |  | 10.00% | 10.00% |  |  |  |
Bottom of range [member] | Investment In Preferred Shares [Member] | Long Term Receivables [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial assets at amortized costs | 25,900 |  | $ 25,900 |  | $ 24,200 |  |  |  |  |
Top of range [member] | Investment In Preferred Shares [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial assets at fair value | 25,000 |  | 25,000 |  | 27,500 |  |  |  |  |
Foreign Currency [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Gain losses on cash flow hedges net of tax |  |  | 43,000 |  |  |  |  |  |  |
Senior Unsecured Notes [Member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial liabilities at amortized costs |  |  |  |  | 280,300 |  |  |  |  |
Financial liabilities, at fair value |  |  |  |  | 280,295 | $ 284,605 |  |  |  |
Senior Unsecured Notes [Member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial liabilities at amortized costs | 270,500 |  | 270,500 |  | 266,900 |  |  |  |  |
Senior Unsecured Notes [Member] | Top of range [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Financial liabilities at amortized costs | $ 261,500 |  | $ 261,500 |  | $ 280,300 |  |  |  |  |
Senior Unsecured Notes [Member] | Discount rate, measurement input [member] | Weighted average [member] |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |
Weighted average discount rate | 5.9 |  | 5.9 |  | 3.5 |  |  |  |  |

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