Trade and other receivables (Tables)

12 Months Ended

Dec. 31, 2020

Trade and other receivables [abstract]

Disclosure of detailed information about trade and other receivables [Table Text Block]

		Dec. 31, 2020		Dec. 31, 2019
Current
Trade receivables	$	107,787	$	87,332
Statutory receivables		28,445		16,543
Other receivables		4,967		2,119
		141,199		105,994
Non-current
Taxes receivable		16,941		17,669
Other receivables		1,627		1,595
		18,568		19,264
	$	159,767	$	125,258