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Financial Instruments - Additional Information (Details) $ in Millions, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 CAD ($) day | Dec. 31, 2021 CAD ($) day | Dec. 31, 2022 USD ($) day | Dec. 31, 2022 AUD ($) day | Dec. 31, 2021 AUD ($) day | Oct. 29, 2021 CAD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Gains (losses) on cash flow hedges, net of tax | $ 3,600,000 | $ 3,600,000 |  |  |  |
Maximum amount of credit risk exposure | $ 2,031,100,000 | $ 1,746,900,000 |  |  |  |
Number of internal target days of revenue in trade receivables | day | 62 | 59 | 62 | 62 | 59 |
Impairment loss recognised in profit or loss, trade receivables | $ 1,900,000 | $ 1,000,000.0 |  |  |  |
Recoveries | (1,100,000) | (2,200,000) |  |  |  |
Adjustments in net income resulting from 1% changes in interest rate | 2,000,000.0 | 2,800,000 |  |  |  |
Additional revolving credit facilities amount |  |  |  |  |  | $ 600,000,000
Adjustments in net income resulting from 0.5% changes in interest rate | 5,400,000 | $ 5,300,000 |  |  |  |
Return Swap On Share-Based Compensation Units |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Unrealized loss on forward contract | $ (1,200,000) |  |  |  |  |
PSUs |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Adjustments in net income resulting from 10% changes in interest rate | 120000000.00% | 130000000.00% | 120000000.00% | 120000000.00% | 130000000.00% |
Revolving credit facility |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Amount of revolving credit facility | $ 800,000,000 |  |  |  |  | $ 800,000,000
Unused capacity of the facility | 223,600,000 | $ 243,700,000 |  |  |  |
Credit Facilities |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Unused capacity of the facility | 231,800,000 | 243,700,000 |  |  |  |
Return Swap On Share-Based Compensation Units |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Gains on change in fair value of derivatives |  | 100,000 |  |  |  |
Forward contract |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Gains on change in fair value of derivatives | 100,000 | 300,000 |  |  |  |
Forward contract | United States of America, Dollars |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Derivative notional amount | 149,900,000 |  | $ 110.6 |  |  |
Forward contract | Australia, Dollars |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Derivative notional amount | $ 51,600,000 | 39,300,000 |  | $ 56.4 | $ 42.8 |
Cash flow hedges |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Interest rate swap agreement, amount | 160,000,000.0 |  |  |  |  |
Interest rate swap agreement, fixed Interest rate | 2.295% |  | 2.295% | 2.295% |  |
Unrealized gain (loss) on interest rate swap | $ 4,300,000 | 4,600,000 |  |  |  |
Gains (losses) on cash flow hedges, net of tax | 3,300,000 | 3,500,000 |  |  |  |
Cash flow hedges | RSUs |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Unrealized gain (loss) on interest rate swap | 400,000 | 100,000 |  |  |  |
Gains (losses) on cash flow hedges, net of tax | (300,000) | 100,000 |  |  |  |
Reclassification adjustments on cash flow hedges, before tax | (3,000,000.0) | 100,000 |  |  |  |
Reclassification adjustments on cash flow hedges, net of tax | $ (2,300,000) | $ 100,000 |  |  |  |
Cash flow hedges | Return Swap On Share-Based Compensation Units |  |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |  |
Interest rate swap agreement, amount | 22,400,000 |  |  |  |  |

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