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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Net income | $ 31,018 | $ 23,243 | $ 78,628 | $ 60,530
Gain on cash flow hedges, net of tax expense of $58, $301, $582, and $791, respectively | 94 | 484 | 938 | 1,274
Comprehensive income | $ 31,112 | $ 23,727 | $ 79,566 | $ 61,804

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