Summary of Nonvested Shares (Detail) (Restricted Stock Units (RSUs), USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2011
Year
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
Restricted Stock Units (RSUs)
|
|||
Shares Underlying RSUs | |||
Nonvested beginning balance | 905,000 | 876,000 | 872,000 |
Granted | 799,000 | 427,000 | 326,000 |
Vested and released | (416,735) | (327,000) | (257,000) |
Forfeited | (80,000) | (71,000) | (65,000) |
Nonvested ending balance | 1,208,000 | 905,000 | 876,000 |
Average Grant Date Fair Value Price per Share | |||
Nonvested beginning balance | $ 14.19 | $ 11.95 | $ 13.68 |
Granted | $ 21.24 | $ 17.59 | $ 8.56 |
Vested and released | $ 13.94 | $ 12.72 | $ 13.39 |
Forfeited | $ 17.53 | $ 13.80 | $ 12.44 |
Nonvested ending balance | $ 18.71 | $ 14.19 | $ 11.95 |
Weighted Remaining Vesting Period (in years) | |||
Nonvested as of December 31, 2011 | 1.35 | ||
Aggregate Intrinsic Value | |||
Nonvested as of December 31, 2011 | $ 28,543 |
X | ||||||||||
- Details
|
X | ||||||||||
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeits In Period Weighted Average Grant Date Fair Value No definition available.
|
X | ||||||||||
- Definition
Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Nonvested, Total Intrinsic Value No definition available.
|
X | ||||||||||
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options Vested And Released In Period Weighted Average Grant Date Fair Value No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- 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
|
X | ||||||||||
- 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
|
X | ||||||||||
- 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
|
X | ||||||||||
- 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
|
X | ||||||||||
- Details
|
X | ||||||||||
- 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
|
X | ||||||||||
- Definition
The weighted average period between the balance sheet date and expiration for equity-based awards other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan), which may be expressed in a decimal value for number of years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|