Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Class A Common Stock
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	350,000,000	350,000,000
Common Stock, shares issued	31,911,243	30,704,491
Common Stock, shares outstanding	31,851,843	30,645,091
Treasury stock, shares	59,400	59,400
Class B Common Stock
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	150,000,000	150,000,000
Common Stock, shares issued	25,234,625	25,984,625
Common Stock, shares outstanding	25,234,625	25,984,625