Share capital (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure of classes of share capital [abstract]

Disclosure of detailed information about shares, activity [Table Text Block]

	Year ended Dec. 31, 2022			Year ended Dec. 31, 2021
	Common shares		Amount	Common shares		Amount
Balance, beginning of year	261,598,312	$	1,778,848	261,272,151	$	1,777,340
Exercise of options	421,545		1,926	326,161		1,508
Balance, end of year	262,019,857	$	1,780,774	261,598,312	$	1,778,848