XML 86 R76.htm IDEA: XBRL DOCUMENT v3.19.2
Share Repurchase Plan (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Mar. 19, 2018
Equity [Abstract]      
Stock repurchase program, authorized amount     $ 50,000,000
Repurchased common shares (in shares) 71,936 385,840  
Cost to repurchase common shares $ 2,835,000 $ 15,122,000  
Cost to repurchase common shares (in dollars per share) $ 39.41 $ 39.19  
Stock repurchase program, remaining authorized repurchase amount $ 22,600,000 $ 22,600,000