Accounts Receivable (Notes)

12 Months Ended

Dec. 31, 2012

Receivables [Abstract]

Accounts Receivables

ACCOUNTS RECEIVABLE

Accounts receivable at December 31, 2012 and December 31, 2011 includes the following components:

	As at December 31,
	2012		2011
Value added tax refunds	$	9,766	$	8,051
Other	2,130		2,026
Total	$	11,896	$	10,077