|
Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
| Income Tax Disclosure [Abstract] | |
| Federal net operating loss carryforwards | $ 49.3 |
| Federal net operating loss carryForwards expiration year | 2034 |
| Excess tax benefits related to stock-based compensation | $ 0.2 |