|
Income Taxes - Narrative (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
|---|---|
|
Mar. 31, 2015
|
|
| Significant Accounting Policies [Line Items] | |
| Unrecognized Tax Benefits | 0 |
| Minimum | |
| Significant Accounting Policies [Line Items] | |
| Number of Open Tax Years | 3 years |
| Maximum | |
| Significant Accounting Policies [Line Items] | |
| Number of Open Tax Years | 4 years |