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Supplemental Cash Flows Information supplemental cash flow information (Notes)
3 Months Ended
Mar. 31, 2013
Supplemental Cash Flow Information [Abstract]  
Cash Flow, Supplemental Disclosures [Text Block]
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION

 
Three Months Ended March 31,
 
2013
 
2012
 
(in thousands)
Non-cash investing and financing activities -
 
 
 
Property, plant and equipment acquired with accrued liabilities
$
4,953

 
$
1,417

 
 
 
 
Cash (paid) refunded during the period for -
 
 
 
Interest (net of amounts capitalized)
$
(3,098
)
 
$
(2,318
)
Income taxes, net
$

 
$
(150
)