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Supplemental Cash Flow Information (Tables)
 9 Months Ended
Sep. 30, 2014
Supplemental Cash Flow Elements [Abstract]  
Net Changes In Components Of Operating Assets And Liabilities
The following table provides information regarding the net changes in components of operating assets and liabilities.
 
 
Nine Months Ended
September 30,
 
2014
 
2013
(Increase) decrease in:
 
 
 
Accounts receivable
$
43,591

 
$
(92,906
)
Inventories
(14,060
)
 
(32,073
)
Other current assets
48,582

 
13,897

Increase (decrease) in:
 
 
 
Accounts payable
(8,576
)
 
75,506

Accrued liabilities
(30,487
)
 
7,222

Net changes in components of operating assets and liabilities
$
39,050

 
$
(28,354
)