Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 1,504 $ 1,534
Accumulated depreciation 9,871 6,676
Accumulated amortization $ 102,839 $ 81,212
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 300,000,000 300,000,000
Common stock, shares issued 100,025,500 99,992,000
Common stock, shares outstanding 99,975,210 99,992,000
Treasury stock, shares 50,290 0