Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details) (Textual)

v2.3.0.15
Summary of Significant Accounting Policies (Details) (Textual) (USD $)
In Thousands, except Share data
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Dec. 31, 2010
Summary of Significant Accounting Policies (Textual) [Abstract]          
Common stock equivalents 417,427,000 727,496,000 407,649,000 735,091,000  
Total debt $ 3,031,167   $ 3,031,167   $ 3,217,578
Fair value of debt $ 3,409,272   $ 3,409,272   $ 3,722,905