|
Share-Based Compensation - Unrecognized Share-Based Compensation Expense (Detail) (USD $)
In Thousands, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2013
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unrecognized Expense | $ 3,952 |
| Average Expected Recognition Period | 2 years 9 months 18 days |
|
Stock option awards [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unrecognized Expense | 2,158 |
| Average Expected Recognition Period | 2 years 8 months 12 days |
|
Restricted stock awards [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unrecognized Expense | $ 1,794 |
| Average Expected Recognition Period | 2 years 10 months 24 days |
| X | ||||||||||
|
- Definition
Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|