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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Statement of Comprehensive Income [Abstract]        
Tax (benefit) provision of unrealized loss on interest rate swap $ (713) $ 4,919 $ 9,345 $ 7,744
Tax provision of reclassification adjustment $ 1,267 $ 1,224 $ 3,822 $ 3,593