Right-of-use assets (Tables)

12 Months Ended

Dec. 31, 2023

Operating Lease and Financing Lease, Right Of Use Assets [Abstract]

Schedule of Right-of-Use Assets

December 31, 2023	Cost		Accumulated amortization		Net book value
Vessel operating leases	$	740.8	$	(376.4)	$	364.4
Vessel finance leases	69.1		(0.5)		68.6
Other operating leases	17.0		(12.0)		5.0
Right-of-use assets	$	826.9	$	(388.9)	$	438.0

December 31, 2022	Cost		Accumulated amortization		Net book value
Vessel operating leases	$	835.5	$	(335.5)	$	500.0
Vessel finance leases	246.6		(7.9)		238.7
Office operating leases	15.6		(7.6)		8.0
Right-of-use assets	$	1,097.7	$	(351.0)	$	746.7