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STATEMENTS OF CASH FLOWS Table 1 (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Decrease (increase) in current assets:    
Accounts receivable $ 26,688 $ 109,696
Receivable from related parties 50,940 31,730
Inventories 25,023 (2,099)
Income tax receivable (3,609) 1,213
Other current assets (722) 20,375
Increase (decrease) in current liabilities:    
Accounts payable (115,727) (81,929)
Payable to related party 5,979 8,950
Accrued interest payable 510 1,951
Accrued liabilities (1,468) (29,854)
Taxes other than income tax 1,040 (1,334)
Income tax payable (1,144) 1,178
Changes in current assets and current liabilities $ (12,490) $ 59,877