Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.57	$ 0.54
Common stock issued in acquisition (in shares)		4,933,115
Treasury stock issued for restricted awards, net of forfeitures (in shares)	110,643	87,841
Forfeitures of restricted stock (in shares)	5,717	5,717