Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Stockholders' Equity [Abstract]
Dividends declared per share	$ 0.28	$ 0.26	$ 0.49
Average cost of treasury stock per share	$ 14.66	$ 13.00	$ 12.09