Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.4.0.8
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Preferred stock, par or stated value per share $ 0.01 $ 0.01
Preferred stock, shares authorized 50,000,000 50,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Series A [Member]
   
Common stock, par or stated value per share $ 0.01 $ 0.01
Common stock, shares authorized 2,000,000,000 2,000,000,000
Common stock, shares issued 110,630,488 111,852,001
Common stock, shares outstanding 110,630,488 111,852,001
Series B [Member]
   
Common stock, par or stated value per share $ 0.01 $ 0.01
Common stock, shares authorized 75,000,000 75,000,000
Common stock, shares issued 9,876,578 9,886,838
Common stock, shares outstanding 9,876,578 9,886,838
Common Class C [Member]
   
Common stock, par or stated value per share $ 0.01 $ 0.01
Common stock, shares authorized 2,000,000,000 2,000,000,000
Common stock, shares issued 0 0
Common stock, shares outstanding 0 0