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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME (Unaudited) (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
Other comprehensive (loss)/income:        
Unrealized gains (losses) on investment, tax expense $ 25 $ (56) $ 2 $ (260)
Reclassification of net losses on swap derivatives to earnings, tax   $ 44   $ 333