XML 65 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Weighted Average Shares Oustanding Used in Calculating Basic and Diluted Net Income Per Share) (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Earnings Per Share [Abstract]        
Basic weighted-average common shares outstanding 28,452,807 28,135,705 28,383,843 28,062,438
Effect of dilutive shares 612,239 516,637 689,257 550,188
Diluted weighted-average common shares outstanding 29,065,046 28,652,342 29,073,100 28,612,626