Annual report pursuant to section 13 and 15(d)

2. VARIABLE INTEREST ENTITY (Details)

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2. VARIABLE INTEREST ENTITY (Details) (New PE Holdco, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
New PE Holdco
 
Values and classification of assets that are collateral for the obligations of New PE Holdco  
Cash and cash equivalents   
Other current assets 7,699
Property and equipment 145,774
Other assets 2,719
Total assets 156,192
Current liabilities 4,287
Long-term debt 100,821
Other liabilities 207
Total liabilities $ 105,315