Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Summary of Long-Term Debt

	As at		As at
	September 30, 2016		December 31, 2015
	$		$
Revolving Credit Facilities due through 2021	466,787		530,971
Term Loans due through 2021	509,368		635,330
Total principal	976,155		1,166,301
Unamortized discount and debt issuance costs	(9,504	)	(1,696	)
Total debt	966,651		1,164,605
Less: current portion	(155,690	)	(174,047	)
Non-current portion of long-term debt	810,961		990,558