Other (Expenses) Income (Tables)

12 Months Ended

Dec. 31, 2016

Other Income and Expenses [Abstract]

Summary of Other (Expense) Income

	Year Ended December 31,
	2016 $		2015 $		2014 $
Income tax expense	(7,511	)	(3,406	)	(1,977	)
Gain on initial recognition of stock purchase warrant	—		—		3,420
Foreign exchange gain	1,413		613		(292	)
Other income	120		50		167
Total	(5,978	)	(2,743	)	1,318