Debt (Tables)

3 Months Ended

Mar. 31, 2016

Debt [Abstract]

Schedule of Debt

		Carrying value
		March 31,		December 31,
			2016		2015
Short-term debt		$	42,504	$	12,350
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.		26,143		24,567
	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.		46,132		43,348
			102,275		97,915
Total debt		$	144,779	$	110,265
Total long-term debt:
Current portion		$	46,132	$	43,348
Non-current portion			56,143		54,567
		$	102,275	$	97,915