Income Tax (Tables)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Components of Provision for Income Tax

The components of the provision for income tax are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	$		$		$		$
Current	333		(1,092	)	(1,203	)	(1,035	)
Deferred	(1,213	)	674		(5,435	)	(762	)
Income tax expense	(880	)	(418	)	(6,638	)	(1,797	)