Significant Accounting Policies (Estimated Useful Lives Of Assets) (Details) | 9 Months Ended |
|---|---|
Sep. 30, 2011 | |
Buildings And Improvements [Member] | |
| Estimated useful lives of assets, minimum (in years) | 5 |
| Estimated useful lives of assets, maximum (in years) | 40 |
Furniture, Fixtures And Equipment [Member] | |
| Estimated useful lives of assets, minimum (in years) | 5 |
| Estimated useful lives of assets, maximum (in years) | 10 |