Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Forward Contracts Outstanding, Estimated Fair Value, Change in Fair Value and Realized Gains of Derivative Instruments

The following table sets forth the estimated fair value of derivative instruments recorded within other assets on the condensed consolidated balance sheet as at December 31, 2013, and realized gains (losses) on derivative instruments recorded in net earnings for the years ended December 31, 2014 and 2013:

Foreign Exchange Forward Contract	Contract Date	Settlement Date	Contract Amount		Settlement Amount		Fair Value as at December 31,			Net Foreign Exchange (Losses) Gains
2014
Australian dollar	November 26, 2013	January 3, 2014	A$	45,000	$	41,036	$	—		$	(130	)
U.S Dollar	July 1, 2013	January 3, 2014	$	40,887	A$	45,000	—			130
							$	—		$	—
2013
Australian dollar	November 26, 2013	January 3, 2014	A$	45,000	$	41,036	$	779		$	779
U.S Dollar	July 1, 2013	January 3, 2014	$	40,887	A$	45,000	(630		)	(630		)
Australian dollar	February 8, 2012	May 10, 2013	A$	45,000	$	36,099	—			303
British pound	March 6, 2012	March 6, 2013	£	17,000	$	26,611	—			1,023
							$	149		$	1,475