|
Goodwill - Additional Information (Details) (USD $)
|
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2014
|
Dec. 31, 2013
|
|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| Goodwill | $ 222,000,000 | $ 222,000,000 |
| Goodwill, impairment | $ 0 |