Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.54	$ 0.5
Common stock issued in acquisition, shares	4,933,115
Treasury stock issued for restricted awards, net of forfeitures	87,841	80,455
Forfeitures of restricted stock, shares	5,717	21,783