Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Taxes

Schedule of Effective Income Tax Rate Reconciliation

Year ended December 31,	2019			2018			2017
Earnings before income tax	$	190,763		$	152,512		$	77,394
Statutory federal and provincial tax rate in Canada		27.00	%		27.00	%		26.00	%
Expected income tax expense	$	51,506		$	41,178		$	20,122
Non-deductible expenses		3,705			4,810			5,668
Adjustment to prior year provision to statutory tax returns		4			1,323			(528)
Changes in the valuation of deferred tax assets		(550)			(771)			(1,089)
Different tax rates of subsidiaries operating in foreign jurisdictions		(11,818)			(17,145)			(12,269)
U.S. tax reform impacts		6,949			4,899			(9,734)
Change in enacted tax rates		(1,016)			93			(229)
Change in estimate of deductibility of stock options		—			—			(1,557)
Unrecognized tax benefits		(2,347)			(1,800)			3,291
Benefits of deductible stock options vested and exercised		(1,780)			(2,434)			(1,359)
Other		(3,030)			853			(228)
	$	41,623		$	31,006		$	2,088

Summary of Income Tax Expense (Recovery)

Year ended December 31,	2019		2018		2017
Canadian:
Current tax expense	$	19,752	$	13,209	$	14,245
Deferred tax expense (recovery)		3,346		3,958		(10,192)
Foreign:
Current tax expense before application of operating loss carryforwards		24,815		19,851		8,987
Tax benefit of operating loss carryforwards		(11,770)		(8,293)		(3,876)
Total foreign current tax expense		13,045		11,558		5,111
Deferred tax expense before adjustment
to opening valuation allowance		5,727		2,386		(6,317)
Adjustment to opening valuation allowance		(247)		(105)		(759)
Total foreign deferred tax expense (recovery)		5,480		2,281		(7,076)
	$	41,623	$	31,006	$	2,088

Schedule of Deferred Tax Assets and Liabilities

As at December 31,	2019		2018
Deferred tax assets:
Working capital	$	13,307	$	4,703
Property, plant and equipment		5,579		6,385
Share-based compensation		5,973		4,923
Tax losses and tax credit carryforwards		33,248		48,881
Lease liabilities		29,523		2,578
Other		3,088		12,266
		90,718		79,736
Deferred tax liabilities:
Property, plant and equipment	$	(14,783)	$	(10,918)
Goodwill		(8,499)		(8,390)
Intangible assets		(50,531)		(54,810)
Right-of-use assets		(25,244)		—
Other		(7,496)		(12,051)
		(106,553)		(86,169)
Net deferred tax assets (liabilities)	$	(15,835)	$	(6,433)
Valuation allowance		(12,913)		(13,438)
	$	(28,748)	$	(19,871)

Schedule of Non-capital Loss Carryforwards

2020	$	4,983
2021		3,543
2022		4,878
2023		2,964
2024 and thereafter		69,462
	$	85,830

Schedule of Unrecognized Tax Benefits

As at December 31,	2019		2018
Unrecognized tax benefits, beginning of year	$	22,584	$	25,910
Increases - tax positions taken in prior period		700		725
Decreases - tax positions taken in prior period		(57)		(107)
Increases - tax positions taken in current period		1,268		2,644
Settlement and lapse of statute of limitations		(4,364)		(4,944)
Currency translation adjustment		101		(1,644)
Unrecognized tax benefits, end of year	$	20,232	$	22,584