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Financial Instruments | 12 Months Ended
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Dec. 31, 2023
Financial Instruments [Abstract] |
Financial Instruments | Financial Instruments a)Derivative financial instruments Interest rate swap The Company had an interest rate swap agreement to hedge the interest rate variability on tranche C of the term loan with a notional amount of $160.0, which matured on June 27, 2023 and recognized a realized gain in the consolidated statements of income of $2.0 (2022 - unrealized gain through OCI of $4.3 ($3.3 net of tax)). Total return swaps on share-based compensation units The Company has total return swap (TRS) agreements with financial institutions to manage its exposure to changes in the fair value the Company's shares for certain cash-settled share-based payment obligations. The Company has designated the TRSs related to its RSUs as a cash flow hedge, with a notional amount of $22.2 maturing between 2024 and 2026. The fair value of the TRSs are based on the difference between the hedged price and the fair value of the Company’s common shares and are recorded in other assets (note 14) and other liabilities (note 19). For the year ended December 31, 2023, the TRSs related to the Company's RSUs had an unrealized gain of $5.1 ($3.9 net of tax) (2022 - unrealized gain of $0.4 ($0.3 net of tax)) which was recognized in OCI and a gain of $8.1 (2022 - loss of $3.0) was reclassified to the consolidated statements of income, in administrative and marketing expenses. The TRSs related to the Company's DSUs, for which hedge accounting was not applied, had an unrealized gain of $7.4 (2022 - unrealized loss of $1.2) which was recognized in administrative and marketing expenses in the consolidated statements of income. There is an economic relationship between these TRSs and the obligation for RSUs because the terms of the two instruments match (i.e., notional amount and payment). The Company has established a hedge ratio of 1:1 for the hedging relationship as the underlying risk of the TRSs are identical to the hedged risk component. b)Nature and extent of risks The conflicts in Ukraine and the Middle East, and the transition to higher inflationary environments, as described in note 5, have had adverse financial impacts on the global economy, but the Company has not seen a significant increase to its risk exposure. Management continues to closely monitor the impacts on the Company’s risk exposure and will adjust its risk management approach as necessary. Credit risk Assets that subject the Company to credit risk consist primarily of cash and cash equivalents, trade and other receivables, unbilled receivables, contract assets, investments held for self-insured liabilities, holdbacks on long-term contracts, and other financial assets. The Company’s maximum amount of credit risk exposure is limited to the carrying amount of these assets, which at December 31, 2023, was $2,407.3 (2022 – $2,031.1). The Company limits its exposure to credit risk by placing its cash and cash equivalents in high-quality credit institutions. Investments held for self-insured liabilities include corporate bonds and equity securities. The Company believes the risk associated with corporate bonds and equity securities is mitigated by the overall quality and mix of the Company’s investment portfolio. Substantially all bonds held by the Company are investment grade, and none are past due. The Company monitors changes in credit risk by tracking published external credit ratings. The Company mitigates the risk associated with trade and other receivables, unbilled receivables, contract assets, and holdbacks on long-term contracts by providing services to diverse clients in various industries and sectors of the economy. In addition, management reviews trade and other receivables past due on an ongoing basis to identify matters that could potentially delay the collection of funds at an early stage. The Company does not concentrate its credit risk in any particular client, industry, or economic or geographic sector. The Company monitors trade receivables to an internal target of days of revenue in trade receivables. At December 31, 2023, the days of revenue in trade receivables was 59 days (2022 – 62 days). The lifetime ECLs relating to financial assets are outlined in the table below:
| Total | 1–30 | 31–60 | 61–90 | 91–120 | 121+
December 31, 2023 | $ | $ | $ | $ | $ | $
Expected loss rate |  | 0.09 | % | 0.08 | % | 0.23 | % | 0.75 | % | 1.41 | %
Gross carrying amount | 1,844.5 |  | 1,329.5 |  | 309.0 |  | 92.1 |  | 31.7 |  | 82.2 |
Loss allowance provision, end of the year | 3.5 |  | 1.2 |  | 0.3 |  | 0.2 |  | 0.3 |  | 1.5 |
December 31, 2022 |  |  |  |  |  |
Expected loss rate |  | 0.07 | % | 0.11 | % | 0.28 | % | 0.61 | % | 1.27 | %
Gross carrying amount | 1,720.1 |  | 1,286.3 |  | 246.9 |  | 71.6 |  | 39.8 |  | 75.5 |
Loss allowance provision, end of the year | 2.6 |  | 1.1 |  | 0.2 |  | 0.2 |  | 0.2 |  | 0.9 |
Bonds carried at FVOCI are considered to be low risk; therefore, the impairment provision is determined to be the 12-month ECL. Price risk The Company’s investments held for self-insured liabilities are exposed to price risk arising from changes in the market values of the equity securities. This risk is mitigated because the portfolio of equity funds is monitored regularly and appropriately diversified. For the Company's investments held for self-insured liabilities, a 5% increase or decrease in equity prices at December 31, 2023, would increase or decrease the Company’s net income by $3.0 (2022 - $2.0), respectively. The Company is also exposed to changes in its share price arising from its cash-settled share-based payments as the Company's obligations under these arrangements are based on the price of the Company's shares. The Company mitigates a portion of its exposure to this risk for its RSUs and DSUs by entering into TRSs. For PSUs, a 10% increase or decrease in the price of the Company's shares at December 31, 2023, would decrease or increase the Company’s net income by $3.6 (2022 - $1.2), respectively. Liquidity risk The Company meets its liquidity needs through various sources, including cash generated from operations, issuing senior unsecured notes, borrowings from its $800 revolving credit facility, term loan facilities, bilateral, multicurrency, and overdraft credit facilities, and the issuance of common shares. The unused capacity of the credit facilities at December 31, 2023, was $732.7 (2022 – $231.8) and the Company also has access to additional funds of $600 under its syndicated credit facilities (note 16). The Company believes that it has sufficient resources to meet obligations associated with its financial liabilities. The timing of u ndiscounted cash outflows relating to financial liabilities is outlined in the table below:
| Total | Less than 1 Year | 1 to 3 Years | After 3 Years
| $ | $ | $ | $
December 31, 2023 |  |  |  |
Bank indebtedness | 23.6 |  | 23.6 |  | — |  | — |
Trade and other payables | 818.5 |  | 818.5 |  | — |  | — |
Lease liabilities | 667.8 |  | 119.4 |  | 228.3 |  | 320.1 |
Long-term debt | 1,135.1 |  | 148.4 |  | 196.3 |  | 790.4 |
Other financial liabilities | 5.6 |  | 5.3 |  | 0.3 |  | — |
Total contractual obligations | 2,650.6 |  | 1,115.2 |  | 424.9 |  | 1,110.5 |
December 31, 2022 |  |  |  |
Bank indebtedness | 65.4 |  | 65.4 |  | — |  | — |
Trade and other payables | 755.7 |  | 755.7 |  | — |  | — |
Lease liabilities | 708.0 |  | 118.7 |  | 240.1 |  | 349.2 |
Long-term debt | 1,241.3 |  | 54.0 |  | 192.1 |  | 995.2 |
Other financial liabilities | 6.0 |  | 4.0 |  | 2.0 |  | — |
Total contractual obligations | 2,776.4 |  | 997.8 |  | 434.2 |  | 1,344.4 |
Interest rate risk The Company is subject to interest rate cash flow risk to the extent that its credit and term loan facilities are based on floating interest rates. The Company is also subject to interest rate pricing risk to the extent that its investments held for self-insured liabilities include fixed-rate government and corporate bonds. If the interest rate on the Company’s credit and term loan facilities at December 31, 2023, was 1.0% higher or lower, with all other variables held constant, net income would decrease or increase by $4.0 (2022 - $5.4), respectively. Foreign exchange risk Foreign exchange risk is the risk that the fair value of the future cash flows of a financial instrument will fluctuate because of changes in foreign exchange rates. Foreign exchange gains or losses in net income arise on the translation of foreign currency-denominated assets and liabilities (such as trade and other receivables, bank indebtedness, trade and other payables, and long-term debt) held in the Company’s Canadian operations and foreign subsidiaries. The Company manages its exposure to foreign exchange fluctuations on these items by matching foreign currency assets with foreign currency liabilities and, from time to time, through the use of foreign currency forward contracts. Foreign exchange fluctuations may also arise on the translation of the Company’s US-based subsidiaries or other foreign subsidiaries, where the functional currency is different from the Canadian dollar, and are recorded in other comprehensive income. The Company does not hedge for this foreign exchange risk.

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