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Stock-based compensation (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of stock-based compensation expenses included in general and administrative expenses

Stock-based compensation expenses included in general and administrative expenses are as follows:

Year ended December 31,			Note						2022						2021
Restricted share unit plan			19(a)						$	2,154					$	2,335
Performance restricted share unit plan			19(b)						2,522						2,165
Deferred stock unit plan			19(c)						104						7,106
									$	4,780					$	11,606

Schedule of restricted share unit plan activity

						Number of units						Weighted-average exercise price $ per share
Outstanding at December 31, 2020						641,471						10.34
Granted						144,383						19.97
Vested						(220,116)						8.44
Forfeited						(12,327)						13.01
Outstanding at December 31, 2021						553,411						13.55
Granted						167,631						15.55
Vested						(169,689)						14.13
Forfeited						(15,455)						13.41
Outstanding at December 31, 2022						535,898						14.44

Schedule of performance restricted share units

						Number of units						Weighted-average exercise price $ per share
Outstanding at December 31, 2020						492,557						8.86
Granted						112,079						20.04
Vested						(178,067)						8.24
Outstanding at December 31, 2021						426,569						12.06
Granted						116,775						15.55
Vested						(111,630)						14.13
Outstanding at December 31, 2022						431,714						12.47

Schedule of assumptions used in estimate of fair value

The Company estimated the fair value of the PSUs granted during the years ended December 31, 2022 and 2021 using a Monte Carlo simulation with the following assumptions:

						2022						2021
Risk-free interest rate						3.14		%				0.65		%
Expected volatility						48.70		%				50.96		%

Schedule of stock plan activity

						Number of units
Outstanding at December 31, 2020						1,005,503
Granted						66,265
Redeemed						(139,124)
Outstanding at December 31, 2021						932,644
Granted						87,569
Redeemed						—
Outstanding at December 31, 2022						1,020,213

Schedule of stock options activity

						Number of options						Weighted-average exercise price $ per share
Outstanding at December 31, 2020						125,000						4.16
Exercised(i)						(125,000)						4.16
Outstanding at December 31, 2021						—						—

(i) All stock options exercised resulted in new common shares being issued (note 16(a)).

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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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