Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 137,500 137,500
Class A    
Common stock, shares authorized 12,500 12,500
Common stock, shares issued 8,032 8,032
Common stock, shares outstanding 5,233 7,770
Class B    
Common stock, shares authorized 125,000 125,000
Common stock, shares issued 37,271 30,879
Common stock, shares outstanding 36,817 30,720
Restricted stock, shares outstanding 1,006 1,844
Treasury stock, shares 454 159