XML 64 R53.htm IDEA: XBRL DOCUMENT v3.19.2
Business Combinations Business Combination Pro Forma (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Business Acquisition [Line Items]    
Business Acquisition, Pro Forma Revenue $ 150,647 $ 151,085
Business Acquisition, Pro Forma Net Income (Loss) $ 54,477 $ 65,175
Business Acquisition, Pro Forma Earnings Per Share, Basic $ 3.28 $ 3.89
Business Acquisition, Pro Forma Earnings Per Share, Diluted $ 3.26 $ 3.85