Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash dividends paid on common shares, per share	$ 0.19	$ 0.1125
Issuance under equity compensation plans, shares	141,116	109,500
Stock Issued During Period, Shares, Conversion of Convertible Securities	0	0