Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.84	$ 0.80
Exercise of stock options (in shares)	29,250	19,000
Stock Issued During Period, Shares, Other	61,796	0
Purchase of treasury shares (in shares)	0	194,651