Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Pro Forma) (Details)

v3.8.0.1
Acquisitions (Pro Forma) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Mar. 31, 2017
Mar. 31, 2017
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Revenue $ 26,200  
Vitruvian acquisition    
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Pro forma revenue   $ 368,903
Pro forma net income   $ 175,881
Pro forma earnings per share (basic) (in usd per share)   $ 1.03
Pro forma earnings per share (diluted) (in usd per share)   $ 1.03