Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Taxes [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

Year ended December 31,		2015		2014		2013
Income before income taxes	$	176,436	$	129,038	$	134,755
Statutory federal and provincial tax
rate in Canada		26.00%		26.00%		25.75%
Expected income tax expense	$	45,873	$	33,550	$	34,699
Non-deductible expenses		2,579		2,392		2,396
Sale of capital property		(1,291)		(407)		-
Changes in valuation allowance		(5,828)		7,083		4,512
Different tax rates of subsidiaries
operating in foreign jurisdictions		(3,426)		(4,773)		(2,798)
Other		(46)		(1,370)		1,501
	$	37,861	$	36,475	$	40,310

Summary of Income Tax Expense (Recovery)

Year ended December 31,		2015		2014		2013
Canadian:
Current tax expense	$	27,623	$	21,712	$	21,824
Deferred tax expense		1,880		1,680		324
Foreign:
Current tax expense before application
of operating loss carryforwards		16,707		12,236		15,712
Tax benefit of operating loss carryforwards		(1,910)		(627)		(627)
Total foreign current tax expense		14,797		11,609		15,085
Deferred tax expense before adjustment
to opening valuation allowance		(273)		1,474		3,077
Adjustment to opening valuation allowance		(6,166)		-		-
Total foreign deferred tax expense		(6,439)		1,474		3,077
	$	37,861	$	36,475	$	40,310

Schedule of Deferred Tax Assets and Liabilities

As at December 31,		2015		2014
Deferred tax assets:
Working capital	$	4,082	$	1,518
Property, plant and equipment		5,236		4,287
Goodwill		286		447
Share-based compensation		3,243		1,635
Unused tax losses		17,079		20,798
Other		14,704		18,061
		44,630		46,746
Deferred tax liabilities:
Property, plant and equipment	$	(11,292)	$	(14,255)
Goodwill		(12,587)		(12,549)
Intangible assets		(9,370)		(7,425)
Other		(17,308)		(17,812)
		(50,557)		(52,041)
Net deferred tax assets (liabilities)	$	(5,927)	$	(5,295)
Valuation allowance		(11,781)		(18,906)
	$	(17,708)	$	(24,201)

Schedule of Non-capital Loss Carryforwards

2016	$	35
2017		758
2018		270
2019		2,385
2020 and thereafter		47,239
		50,687

Schedule of Unrecognized Tax Benefits

As at December 31,		2015		2014
Unrecognized tax benefits, beginning of year	$	16,131	$	17,919
Increases - tax positions taken in prior period		800		292
Decreases - tax positions taken in prior period		(30)		(3,866)
Increases - tax positions taken in current period		1,770		2,121
Settlement and lapse of statute of limitations		(2,767)		(335)
Unrecognized tax benefits, end of year	$	15,904	$	16,131