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Consolidated Statements of Operations Parentheticals (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Statements of Operations Parentheticals [Abstract]        
Sales to related parties $ 156,131 $ 164,338 $ 447,314 $ 462,280