v2.4.0.6

SHARE-BASED COMPENSATION - RSU Activity (Details) (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2012 number | Sep. 30, 2011
Number of Restricted Stock Units [Roll Forward] |  |
RSUs beginning | 1,860,577 |
RSUs awarded | 290,556 |
RSUs released | (358,131) |
RSUs forfeited | (20,790) |
RSUs ending | 1,772,212 |
Weighted Average Purchase Price RSUs | $ 0 |
Weighted Average Remaining Contractual Term (Years) RSUs | 1.2 |
Aggregate Intrinsic Value RSUs | $ 12,157,374 |
Number of RSUs vested and expected to vest | 1,654,227 |
Weighted Average Purchase Price of RSUs vested and expected to vest | $ 0 |
Weighted Average Remaining Contractual Term (Years) of RUSs vested and expected to vest | 1.2 |
Aggregate Intrinsic Value RSUs vested and expected to vest | 10,751,208 |
Number of RSUs exercisable | 86,996 |
Weighted Average Purchase Price of RUSs exercisable | $ 0 |
Weighted Average Remaining Contractual Term (Years) of RUSs exercisable | 0.0 |
Aggregate Intrinsic Value RSUs exercisable | 596,793 |
Weighted average remaining recognition period in years | 1.9 |
Unamortized compensation expense, net of estimated forfeitures | 6,692,351 |
Other Options Disclosure [Abstract] |  |
Intrinsic value of options exercised | 446,000 | 520,000
Tax benefit from options exercised, before impact of valuation allowance | 169,000 | 198,000
Cash received from exercise price of options exercised | $ 120,000 | $ 69,000

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