Professional Fees and Other Expenses - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
|
| Other Income And Expenses [Abstract] | ||
| Professional fees and other expenses | $ 2.9 | $ 4.3 |
| X | ||||||||||
- Definition Professional fees and other expenses incurred in response to allegations. No definition available.
|
| X | ||||||||||
- References No definition available.
|