Consolidated Balance Sheet (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Class Of Stock [Line Items]
Common Stock Par Value Per Share	0.01	0.01
Class A Common Stock
Class Of Stock [Line Items]
Common Stock Shares Authorized	50,000,000	50,000,000
Common Stock Shares Outstanding	7,167,506	7,167,506
Class B Common Stock
Class Of Stock [Line Items]
Common Stock Shares Authorized	150,000,000	150,000,000
Common Stock Shares Outstanding	52,011,830	53,529,136