Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Commitments and contingencies

Schedule of movements relating to the right-of-use lease asset balances

Carrying amount, December 31, 2020	$	267,168
ROU assets acquired (Note 4)		7,129
Difference in exchange		(52)
Additions to leased assets		44,342
Depreciation charges		(34,237)
Changes in assets held for sale		761
Carrying amount, December 31, 2021	$	285,111

Carrying amount, December 31, 2019	$	82,794
ROU assets acquired (Note 4)		155,662
Additions to leased assets		53,527
Depreciation charges		(22,553)
Changes in assets held for sale		(2,262)
Carrying amount, December 31, 2020	$	267,168

Schedule of future minimum payments due under non-cancelable operating leases

Period	Scheduled payments
2022	$	55,563
2023		53,414
2024		51,359
2025		49,701
2026		48,395
2027 and thereafter		347,693
Total undiscounted lease liability		606,125
Impact of discount		(286,674)
Lease liability at December 31, 2021		319,451
Less current portion of lease liability		(19,279)
Less long-term lease liabilities transferred to liabilities associated with assets held for sale		(1,891)
Long-term portion of lease liability	$	298,281