Property, Plant And Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule Of Property, Plant And Equipment

As at December 31, 2015		Cost		Accumulated depreciation		Net book value
Land and improvements	$	356,905	$	(54,551)	$	302,354
Buildings		254,760		(82,100)		172,660
Yard and automotive equipment		59,957		(38,848)		21,109
Computer software and equipment		60,586		(50,754)		9,832
Office equipment		22,432		(15,660)		6,772
Leasehold improvements		20,893		(12,160)		8,733
Assets under development		7,131		-		7,131
	$	782,664	$	(254,073)	$	528,591

17.  Property, plant and equipment (continued)

As at December 31, 2014		Cost		Accumulated depreciation		Net book value
Land and improvements	$	357,796	$	(50,235)	$	307,561
Buildings		269,912		(78,370)		191,542
Yard and automotive equipment		67,226		(39,284)		27,942
Computer software and equipment		81,739		(65,778)		15,961
Office equipment		23,639		(15,539)		8,100
Leasehold improvements		21,131		(10,309)		10,822
Assets under development		18,773		-		18,773
	$	840,216	$	(259,515)	$	580,701