Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Repurchased and Retired During Period, Shares	82,423
Common Stock, Dividends, Per Share, Declared	$ 0.53	$ 0.44	$ 0.40
Common stock issuances from reinvested dividends, number of shares	10,214	6,950	5,203
Stock Issued During Period, Shares, Acquisitions		1,537,912
Stock Issued During Period, Shares, Employee Stock Ownership Plan	19,780	39,805	35,283
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	6,800	36,925	24,740