Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income taxes

Schedule of Effective Income Tax Rate Reconciliation

Year ended December 31,	2020			2019			2018
Earnings before income tax	$	235,888		$	190,763		$	152,512
Statutory federal and provincial tax rate in British Columbia, Canada		27.00	%		27.00	%		27.00	%
Expected income tax expense	$	63,690		$	51,506		$	41,178
Non-deductible expenses		4,732			3,705			4,810
Adjustment to prior year provision to statutory tax returns		(865)			4			1,323
Changes in the valuation of deferred tax assets		(2,027)			(550)			(771)
Different tax rates of subsidiaries operating in foreign jurisdictions		(12,016)			(11,818)			(17,145)
U.S. tax reform impacts		17,105			6,949			4,899
Change in enacted tax rates		391			(1,016)			93
Unrecognized tax benefits		817			(2,347)			(1,800)
Benefits of deductible stock options vested and exercised		(4,070)			(1,780)			(2,434)
Other		(2,227)			(3,030)			853
	$	65,530		$	41,623		$	31,006

Summary of Income Tax Expense (Recovery)

Year ended December 31,	2020		2019		2018
Canadian:
Current tax expense	$	27,766	$	19,752	$	13,209
Deferred tax expense		3,970		3,346		3,958
Foreign:
Current tax expense before application of operating loss carryforwards		30,280		24,815		19,851
Tax benefit of operating loss carryforwards		(1,668)		(11,770)		(8,293)
Total current tax expense		28,612		13,045		11,558
Deferred tax expense before adjustment
to opening valuation allowance		6,127		5,727		2,386
Adjustment to opening valuation allowance		(945)		(247)		(105)
Total deferred tax expense		5,182		5,480		2,281
	$	65,530	$	41,623	$	31,006

Schedule of Deferred Tax Assets and Liabilities

As at December 31,	2020		2019
Deferred tax assets:
Working capital	$	13,185	$	13,307
Property, plant and equipment		6,467		5,579
Share-based compensation		5,606		5,973
Tax losses and tax credit carryforwards		25,943		33,248
Lease liabilities		29,393		29,523
Other		8,848		3,088
		89,442		90,718
Deferred tax liabilities:
Property, plant and equipment	$	(16,838)	$	(14,783)
Goodwill		(2,255)		(8,499)
Intangible assets		(52,218)		(50,531)
Right-of-use assets		(26,206)		(25,244)
Long-term debt		(3,571)		(1,883)
Other		(7,165)		(5,613)
		(108,253)		(106,553)
Net deferred tax liabilities	$	(18,811)	$	(15,835)
Valuation allowance		(12,995)		(12,913)
	$	(31,806)	$	(28,748)

Schedule of Non-capital Loss Carryforwards

2021	$	2,430
2022		2,905
2023		3,137
2024		823
2025 and thereafter		65,003
	$	74,298

Schedule of Unrecognized Tax Benefits

As at December 31,	2020		2019
Unrecognized tax benefits, beginning of year	$	20,232	$	22,584
Increases - tax positions taken in prior period		1,487		700
Decreases - tax positions taken in prior period		—		(57)
Increases - tax positions taken in current period		558		1,268
Settlement and lapse of statute of limitations		(2,591)		(4,364)
Currency translation adjustment		612		101
Unrecognized tax benefits, end of year	$	20,298	$	20,232