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Share-Based Compensation - Additional Information (Detail) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2022 CAD ($) anniversary | Mar. 31, 2021 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2021 CAD ($) shares | Dec. 31, 2021 CAD ($) $ / shares | Dec. 31, 2021 CAD ($) anniversary | Dec. 31, 2020 CAD ($) shares | Dec. 31, 2020 CAD ($) $ / shares | Dec. 31, 2019 CAD ($)
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award number of options granted during the period |  |  |  |  |  | 654,847 |  | 654,847 | 839,478 |  |
Share based compensation by share based award weighted average fair value of stock options granted during the period | $ / shares |  |  |  |  |  |  | $ 2.89 |  |  | $ 2.15 |
Allocated share based compensation | $ 4,049,000 | $ 5,267,000 |  |  | $ 12,937,000 |  |  |  | $ 1,816,000 |  | $ 7,749,000
Number of trading days for determining the weighted average share price |  |  |  |  |  |  |  |  | 5 days |  |
Share based compensation by share based award vesting term |  |  |  |  |  |  |  |  | 3 years |  |
Share based compensation by share based award weighted average fair value of equity instruments other than options granted | $ / shares |  |  |  |  |  |  | $ 7.85 |  |  | $ 5.51 |
Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Reserve of share-based payments | 6,000,000 |  | $ 4,300,000 | $ 4,300,000 | 4,300,000 | $ 4,300,000 | $ 4,300,000 | $ 4,300,000 |  |  |
Other longterm liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Reserve of share-based payments | $ 15,300,000 |  | $ 13,400,000 | 13,400,000 | 13,400,000 | $ 13,400,000 | 13,400,000 | $ 13,400,000 |  |  |
Top of range [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Employer Contribution |  |  |  |  | 3,000 |  |  |  |  |  |
Deferred Share Units [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Allocated share based compensation |  |  |  |  | 3,053,000 |  |  |  | $ (1,830,000) |  | (720,000)
Number of trading days for determining the weighted average share price |  |  | 5 days |  |  |  |  |  |  |  |
Share based compensation by share based award equity instruments other than options granted | anniversary | 76,751 |  |  |  |  |  |  | 247,317 |  |  |
Liabilities from share based transaction | $ 600,000 | $ 700,000 |  |  |  |  |  |  |  |  |
Deferred Share Units [Member] | Director And Executive [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Allocated share based compensation |  |  |  |  | 2,100,000 |  |  |  | 2,600,000 |  |
Phantom Share Entitlement Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Allocated share based compensation |  |  |  |  | 102,000 |  |  |  | $ (54,000) |  | (449,000)
Share based compensation by share based award equity instruments other than options granted |  |  |  |  |  | 24,715 |  | 24,715 | 34,853 |  |
Intrinsic value of liabilities from share based payment transactions |  |  | $ 900,000 | 900,000 | 900,000 | $ 900,000 | 900,000 | $ 900,000 | $ 0 | $ 0 |
Phantom Share Entitlement Plan [Member] | Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Liabilities from share based transaction |  |  | $ 200,000 | 200,000 | 200,000 | 200,000 | 200,000 | $ 200,000 | 100,000 | 100,000 |
Performance Share Units [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Allocated share based compensation |  |  |  |  | 3,470,000 |  |  |  | $ 667,000 |  | 2,754,000
Number of trading days for determining the weighted average share price |  |  | 5 days |  |  |  |  |  |  |  |
Share based compensation by share based award equity instruments other than options granted | anniversary |  |  |  |  |  |  |  | 419,195 |  |  |
Share based compensation number of days within which award will be settled from the date of determination of vesting percentage |  |  |  |  |  |  |  |  | 14 days |  |
Settlement of liability in respect of share based transactions |  |  |  |  | 1,000,000 |  |  |  | $ 500,000 |  |
Performance Share Units [Member] | Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Liabilities from share based transaction |  |  | $ 2,000,000 | 2,000,000 | 2,000,000 | 2,000,000 | 2,000,000 | $ 2,000,000 | $ 600,000 | 600,000 |
Performance Share Units [Member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award vesting percentage |  |  |  |  |  |  |  |  | 0.00% |  |
Performance Share Units [Member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award vesting percentage |  |  |  |  |  |  |  |  | 200.00% |  |
Restricted Share Units [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Allocated share based compensation |  |  |  |  | 2,751,000 |  |  |  | $ 755,000 |  | $ 2,199,000
Number of trading days for determining the weighted average share price |  |  | 5 days |  |  |  |  |  |  |  |
Share based compensation by share based award equity instruments other than options granted | anniversary |  |  |  |  |  |  |  | 472,819 |  |  |
Restricted Share Units [Member] | Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Liabilities from share based transaction |  |  | $ 1,300,000 | 1,300,000 | 1,300,000 | $ 1,300,000 | 1,300,000 | $ 1,300,000 | $ 900,000 | 900,000 |
Restricted Share Units [Member] | Directors And Certain Key Executives [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award equity instruments other than options granted | shares |  |  |  |  |  | 472,819 |  |  | 680,200 |  |
Share based compensation number of days within which award will be settled from the date of determination of vesting percentage |  |  |  |  |  |  |  |  | 30 days |  |
Settlement of liability in respect of share based transactions |  |  |  |  | 2,300,000 |  |  |  | $ 800,000 |  |
Cash Performance Target Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award term of expiry |  |  | 3 years |  |  |  |  |  |  |  |
Share based compensation number of days within which award will be settled from the date of determination of vesting percentage |  |  |  |  |  |  |  |  | 30 days |  |
Settlement of liability in respect of share based transactions |  |  |  |  | 1,500,000 |  |  |  | $ 500,000 |  |
Share based compensation by share based equity instruments other than options granted during the period value |  |  |  |  | 2,200,000 |  |  |  | 2,400,000 |  |
Cash Performance Target Plan [Member] | Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Liabilities from share based transaction |  |  | $ 800,000 | $ 800,000 | 800,000 | $ 800,000 | $ 800,000 | $ 800,000 | $ 500,000 | $ 500,000 |
Cash Performance Target Plan [Member] | Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award vesting percentage |  |  |  | 0.33% |  |  |  |  |  |  |
Cash Performance Target Plan [Member] | Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award vesting percentage |  |  |  | 0.03% |  |  |  |  |  |  |
Cash Performance Target Plan [Member] | Tranche Three [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award vesting percentage |  |  |  | 0.03% |  |  |  |  |  |  |
Employee Share Purchase Plan [Member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Employer Contribution |  |  |  |  | $ 1,000 |  |  |  |  |  |

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