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Other assets (Details) $ in Millions, $ in Millions | Mar. 08, 2022 USD ($) | Mar. 08, 2022 CAD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
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Subsequent events |  |  |  |
Deposits related to CRA audits |  |  | $ 15.6 | $ 4.9
Energy well equipment, net |  |  | 5.4 | 5.0
Right-of-use assets, net |  |  | 1.5 | 2.0
Debt issue costs |  |  | 1.2 | 1.3
Furniture and fixtures, net |  |  | 0.2 | 0.4
Other assets |  |  | $ 23.9 | $ 13.6
Subsequent deposit for audit by CRA |  |  |  |
Subsequent events |  |  |  |
Deposits related to CRA audits | $ 22.7 | $ 28.7 |  |

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