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Condensed Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Income Statement [Abstract]        
Equity-based compensation expense $ 4,182 $ 7,129 $ 10,283 $ 14,048