Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Summary of Long-Term Debt

	As at		As at
	June 30, 2016		December 31, 2015
	$		$
Revolving Credit Facilities due through 2021	511,494		530,971
Term Loans due through 2021	543,214		635,330
Total principal	1,054,708		1,166,301
Unamortized discount and debt issuance costs	(10,438	)	(1,696	)
Total debt	1,044,270		1,164,605
Less: current portion	(151,761	)	(174,047	)
Non-current portion of long-term debt	892,509		990,558