v2.4.0.8
Weighted Average Grant Date Fair Value of Restricted Stock Units Granted (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 9 Months Ended
Sep. 30, 2014
Restricted stock units outstanding, Number of Units 2,156,312 [1]
Restricted stock units vested and expected to vest, Number of Units 2,080,553 [2]
Restricted stock units vested and deferred shares, Number of Units 545,500 [3]
Restricted stock units outstanding, Weighted Average Remaining Contractual Life (years) 1 year 2 months 9 days [1]
Restricted stock units vested and expected to vest, Weighted Average Remaining Contractual Life, (years) 1 year 6 months 22 days [2]
Restricted stock units outstanding, Aggregate Intrinsic Value $ 8,410 [1]
Restricted stock units vested and expected to vest, Aggregate Intrinsic Value 5,987 [2]
Restricted stock units vested and deferred shares, Aggregate Intrinsic Value $ 2,127 [3]
[1] Total outstanding units include all unvested and vested but deferred shares which will be released to the employee upon separation from service.
[2] Includes shares vested to-date and expected to vest shares which comprises of unvested shares net of expected forfeitures.
[3] Vested awards with deferral elections to be released to the employee upon separation from service.