XML 39 R28.htm IDEA: XBRL DOCUMENT v3.7.0.1
Earnings Per Share (Details Textual) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 837,201 605,100 705,634 768,550
Weighted Average Price of Antidilutive Securities Excluded from Computation of Earnings Per Share (in dollars per share) $ 26.85 $ 27.12 $ 27.15 $ 27.11