Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]
Stock Repurchased During Period, Shares	0
Cash dividends (in dollars per share)	$ 1.20	$ 1.20	$ 1.20
Class A Common Stock
Statement of Stockholders' Equity [Abstract]
Stock Repurchased During Period, Shares		56,276
Class B Common Stock
Statement of Stockholders' Equity [Abstract]
Stock Repurchased During Period, Shares	0	100