Shareholders equity (Details) - shares	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Shares returned to Treasury	7,122,321
Unlimited Common Stock [Member]
Balance, share	118,827,323	107,516,333
Shares issued for Coast L exchange	18,268,094
Shares issued for vested RSUs and PSUs (Note 19)	165,217
Shares returned to Treasury	(7,122,321)