Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Operations and Comprehensive Income (Parenthetical)

v3.8.0.1
Consolidated Statements of Operations and Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Consolidated Statements of Operations and Comprehensive Income      
Equity-based compensation $ 27,283 $ 26,049 $ 22,470