|
Share-Based Compensation Plans - Schedule of Share Based Compensation Arrangement by Share Based Payment Award Options Outstanding and Exercisable (Detail) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
|
Range One [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Exercise Price Range, Upper Range Limit |
$ 7.80 |
| Number of shares Outstanding |
30,000 |
| Weighted Average Remaining Contract Life (in years) |
3 years 5 months 9 days |
| Weighted Average Exercise Price |
$ 7.80 |
|
Range Two [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Exercise Price Range, Lower Range Limit |
$ 8.35 |
| Exercise Price Range, Upper Range Limit |
$ 8.75 |
| Number of shares Outstanding |
68,500 |
| Weighted Average Remaining Contract Life (in years) |
1 year 7 months 13 days |
| Weighted Average Exercise Price |
$ 8.51 |
|
Range Three [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Exercise Price Range, Lower Range Limit |
$ 7.80 |
| Exercise Price Range, Upper Range Limit |
$ 8.75 |
| Number of shares Outstanding |
98,500 |
| Weighted Average Remaining Contract Life (in years) |
2 years 2 months 1 day |
| Weighted Average Exercise Price |
$ 8.29 |