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Earnings Per Share
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The following is a reconciliation of the outstanding shares used in the basic and diluted earnings per share calculations. 
(Dollars in thousands, except per share data)For the Year Ended December 31,
 201920182017
Net income$112,633  118,387  93,949  
Basic weighted average common shares outstanding64,604,224  64,942,886  64,384,851  
Plus:
Dilutive shares130,367  160,211  194,371  
Diluted weighted average common shares outstanding64,734,591  65,103,097  64,579,222  
Earnings per share:
Basic$1.74  1.82  1.46  
Diluted$1.74  1.82  1.45  
Anti-dilutive stock options and awards totaling 646,457 shares, 443,748 shares and 369,772 shares at December 31, 2019, 2018 and 2017, respectively, were excluded from the earnings per share calculations.