Professional Fees and Other Expenses - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
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| Other Income And Expenses [Abstract] | ||||
| Professional fees and other expenses | $ 3.1 | $ 3.6 | $ 10.7 | $ 15.0 |
| X | ||||||||||
- Definition Professional fees and other expenses incurred in response to allegations. No definition available.
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| X | ||||||||||
- References No definition available.
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