Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

As at June 30, 2017		Cost		Accumulated depreciation		Net book value
Land and improvements	$	372,966	$	(64,957)	$	308,009
Buildings		262,153		(97,815)		164,338
Yard and automotive equipment		58,343		(39,349)		18,994
Computer software and equipment		64,951		(56,647)		8,304
Office equipment		24,427		(17,843)		6,584
Leasehold improvements		21,017		(13,837)		7,180
Assets under development		10,803		-		10,803
	$	814,660	$	(290,448)	$	524,212

As at December 31, 2016		Cost		Accumulated depreciation		Net book value
Land and improvements	$	362,283	$	(60,576)	$	301,707
Buildings		256,168		(91,323)		164,845
Yard and automotive equipment		55,352		(38,560)		16,792
Computer software and equipment		66,265		(57,624)		8,641
Office equipment		22,963		(16,706)		6,257
Leasehold improvements		20,199		(12,541)		7,658
Assets under development		9,130		-		9,130
	$	792,360	$	(277,330)	$	515,030