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Condensed Consolidated Statements of Operations (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Tax portion of revenues and cost of goods sold $ 126,389 $ 141,473 $ 379,281 $ 412,041