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Company's Restricted Shares Activity Under 2007 Stock Incentive Scheme (Detail) (Stock Incentive Plan 2007, Restricted Stock Units (RSUs), USD $)
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12 Months Ended |
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Dec. 31, 2011
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Stock Incentive Plan 2007 | Restricted Stock Units (RSUs)
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| Number of restricted shares | |
| Outstanding, beginning of period | 777,000 |
| Granted | 12,670,000 |
| Exercised | (155,400) |
| Forfeited/Cancelled | (136,000) |
| Outstanding, end of period | 13,155,600 |
| Vested and expected to vest as of end of period | 12,382,299 |
| Weighted average grant date fair value | |
| Outstanding, beginning of period | $ 5,440,896 |
| Granted | $ 40,299,824 |
| Exercised | $ (1,149,096) |
| Forfeited/Cancelled | $ (945,200) |
| Outstanding, end of period | $ 43,646,424 |
| Vested and expected to vest as of December 31, 2011 | $ 41,166,971 |
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- Definition
The decrease in the number of reserved shares that could potentially be issued attributable to the exercise or conversion during the reporting period of previously issued stock options under the option plan. No definition available.
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Exercises In Period, Weighted Average Grant Date Fair Value No definition available.
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- Definition
As of the balance sheet date, the number of shares which fully vested and expected to vest under option plan. No definition available.
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- Definition
As of the balance sheet date, per share value of shares which fully vested and expected to vest under option plan. No definition available.
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- Details
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- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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