|
Property and Equipment - Components of Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 16,088 | $ 15,163 |
| Less: Accumulated depreciation | (12,915) | (11,651) |
| Property and equipment, net | 3,173 | 3,512 |
| Furniture and Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 10,660 | 9,736 |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 5,000 | 4,999 |
| Capitalized Leases [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 238 | 238 |
| Aircraft [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 190 | $ 190 |