Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt [Abstract]

Schedule of Debt

		Carrying value
As at December 31,			2015		2014
Short-term debt		$	12,350	$	7,839
Long-term debt:
	Term loan, denominated in Canadian dollars, unsecured, bearing
	interest at 4.225%, due in quarterly installments of interest only,
	with the full amount of the principal due in May 2022.		24,567		29,257
	Term loan, denominated in United States dollars, unsecured, bearing
	interest at 3.59%, due in quarterly installments of interest only,
	with the full amount of the principal due in May 2022.		30,000		30,000
	Term loan, denominated in Canadian dollars, unsecured, bearing
	interest at 6.385%, due in quarterly installments of interest only,
	with the full amount of the principal due in May 2016.		43,348		51,589
			97,915		110,846
Total debt		$	110,265	$	118,685
Total long-term debt:
Current portion		$	43,348	$	-
Non-current portion			54,567		110,846
		$	97,915	$	110,846

Schedule Of Future Principal Loan Repayments

		Face value
2016	$	55,698
2017		-
2018		-
2019		-
2020		-
Thereafter		54,567
	$	110,265