Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Pro Forma) (Details)

v3.10.0.1
Acquisitions (Pro Forma) (Details) - Vitruvian acquisition - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Pro forma revenue $ 323,953 $ 692,856
Pro forma net income $ 105,936 $ 281,817
Pro forma earnings per share (basic) (in usd per share) $ 0.58 $ 1.60
Pro forma earnings per share (diluted) (in usd per share) $ 0.58 $ 1.59