v3.7.0.1
Business Combination Pro Forma (Details) - UniRush, LLC [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Business Acquisition [Line Items]    
Net revenues $ 272,286 $ 254,511
Net income attributable to common stock $ 33,294 $ 28,127
Earnings per share, basic (in dollars per share) $ 0.66 $ 0.56
Earnings per share, diluted (in dollars per share) $ 0.63 $ 0.55
Basic weighted-average common shares issued and outstanding 50,458 49,863
Diluted weighted-average common shares issued and outstanding 52,497 50,867