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Other assets (Details)
$ in Millions, $ in Millions
Mar. 08, 2022
USD ($)
Mar. 08, 2022
CAD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
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