Stockholders' Equity - Stock Option Activity and Related Information (Detail) - $ / shares
|
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
|
|
|
| Outstanding balance, Shares |
227,750
|
|
|
| Granted, Shares |
0
|
0
|
0
|
| Exercised, Shares |
0
|
|
|
| Forfeited or expired, Shares |
(172,750)
|
|
|
| Outstanding balance, Shares |
55,000
|
227,750
|
|
| Exercisable at end of year, Shares |
55,000
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |
|
|
|
| Outstanding balance, Weighted-Average Exercise Price (in USD per share) |
$ 15.28
|
|
|
| Granted, Weighted-Average Exercise Price (in USD per share) |
0.00
|
|
|
| Exercised, Weighted-Average Exercise Price (in USD per share) |
0.00
|
|
|
| Forfeited or expired, Weighted-Average Exercise Price (in USD per share) |
14.57
|
|
|
| Outstanding balance, Weighted-Average Exercise Price (in USD per share) |
17.53
|
$ 15.28
|
|
| Exercisable at end of year, Weighted-Average Exercise Price (in USD per share) |
$ 17.53
|
|
|