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Cash and Cash Equivalents (Tables) | 12 Months Ended
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Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract] |
Summary of Cash and Cash Equivalents | For the purpose of the consolidated statements of cash flows, cash and cash equivalents consist of the following:
| December 31 2022 | December 31 2021
| $ | $
Cash | 139.5 |  | 183.9 |
Unrestricted investments | 8.8 |  | 10.0 |
Cash and deposits | 148.3 |  | 193.9 |
Bank indebtedness | — |  | (7.2) |
Cash and cash equivalents | 148.3 |  | 186.7 |

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