Senior Bank Debt (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
---|---|---|
Credit facility
|
||
Senior Bank Debt | ||
Maximum borrowing capacity | $ 1,075.0 | |
Revolving credit facility
|
||
Senior Bank Debt | ||
Maximum borrowing capacity | 825.0 | |
Portion of the principal balance maturing in January 2015 | 30.0 | |
Principal balance maturing in November 2016 | 795.0 | |
Option to increase the borrowing capacity under revolving credit facility | 75.0 | |
Line of credit facility amount outstanding | 325.0 | 250.0 |
Term loan
|
||
Senior Bank Debt | ||
Maximum borrowing capacity | 250.0 | |
Option to increase the borrowing capacity under revolving credit facility | $ 250.0 |