XML 52 R42.htm IDEA: XBRL DOCUMENT v3.7.0.1
Acquisitions - Pro Forma Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Business Combinations [Abstract]        
Revenues $ 243,272 $ 264,530 $ 442,904 $ 482,929
Net income $ 36,595 $ 45,536 $ 45,207 $ 62,345
Earnings per share:        
Basic earnings per share (in dollars per share) $ 0.18 $ 0.23 $ 0.23 $ 0.31
Diluted earnings per share (in dollars per share) $ 0.18 $ 0.23 $ 0.22 $ 0.31