|
Summary of Significant Accounting Policies (Prior Period Reclassification Adjustment) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
|---|---|
|
Mar. 31, 2014
|
|
| Sales of Investments [Member] | |
| Summary of Significant Accounting Policies [Line Items] | |
| Prior Period Reclassification Adjustment | $ (14.0) |
| Maturities of Investments [Member] | |
| Summary of Significant Accounting Policies [Line Items] | |
| Prior Period Reclassification Adjustment | $ 14.0 |