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Financial risk management (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Financial Risk Management |  |  |
Cumulative translation adjustment | $ 19.6 | $ 32.3 |
Borrowings |  | 80.0 | $ 210.0
Investments and loan receivable (note 6) | 238.4 | 183.2 |
Credit Facility |  |  |
Financial Risk Management |  |  |
Borrowings |  |  | $ 210.0
Foreign Exchange Risk |  |  |
Financial Risk Management |  |  |
Cumulative translation adjustment | $ 19.6 | $ (32.3) |
Interest Rate Risk |  |  |
Financial Risk Management |  |  |
Increase in interest rate used for sensitivity analysis (as a percent) | 0.50% | 0.50% |
Decrease in interest rate used for sensitivity analysis (as a percent) | 0.50% | 0.50% |
Interest rate sensitivities increase effect on net income | $ 1.8 | $ 0.3 |
Interest rate sensitivities decrease effect on net income | (0.5) | (0.3) |
Interest rate sensitivities increase effect on equity | 1.8 | 0.3 |
Interest rate sensitivities decrease effect on equity | (0.5) | (0.3) |
Borrowings | 80.0 |  |
Liquidity Risk |  |  |
Financial Risk Management |  |  |
Cash and cash equivalents and available-for-sale securities | $ 534.2 | 132.1 |
Term of financial liabilities | 1 year |  |
Capital Risk Management |  |  |
Financial Risk Management |  |  |
Cash and cash equivalents and available-for-sale securities | $ 534.2 | 132.1 |
Investments and loan receivable (note 6) | 238.4 | 183.2 |
Liquid securities | 191.8 | 141.7 |
Capital Risk Management | Credit Facility |  |  |
Financial Risk Management |  |  |
Undrawn borrowing facilities | $ 1,100.0 | $ 1,100.0 |

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