|
Non-Vested Shares of Restricted Common Stock (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Shares | |||
| Non-vested at December 31, 2012 | 87 | ||
| Granted | 41 | ||
| Vested | (25) | ||
| Forfeited | (10) | ||
| Non-vested at December 31, 2013 | 93 | ||
| Weighted average grant date fair value: | |||
| Weighted average grant date fair value, Beginning Balance | $ 51.30 | ||
| Granted | $ 15.82 | ||
| Vested | $ 52.87 | ||
| Forfeited | $ 47.43 | ||
| Weighted average grant date fair value, Ending Balance | $ 35.64 | ||
|
Restricted Stock Units
|
|||
| Shares | |||
| Granted | 62 | 0 | 0 |
| Vested | 0 | ||
| Forfeited | (6) | ||
| Non-vested at December 31, 2013 | 56 | ||
| Weighted average grant date fair value: | |||
| Granted | $ 34.40 | ||
| Forfeited | $ 36.30 | ||
| Weighted average grant date fair value, Ending Balance | $ 35.64 | ||