Subsequent Events | 9 Months Ended |
|---|---|
Sep. 30, 2011 | |
| Subsequent Events [Abstract] | |
| Subsequent Events | 18. Subsequent Events On October 24, 2011, the Board of Directors declared a quarterly dividend of $0.27 per share that will be paid November 9, 2011 to stockholders of record as of November 3, 2011. |