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Share-Based Compensation - Additional Information (Detail) (USD $)
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6 Months Ended | |
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Jun. 30, 2013
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Jun. 30, 2012
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Percentage of restricted shares that will be awarded if target achieved | 25.00% | |
| Percentage of restricted shares that will be awarded if maximum target achieved | 33.00% | |
| Fair market value of shares on grant date | $ 4,500,000 | |
| Service period | 4 years | |
| Share-based compensation expense | 3,790,000 | 3,543,000 |
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Restricted Stock [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Restricted stock granted to executive officers | 183,672 | |
| Share-based compensation expense | $ 701,000 | |
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- Definition
Percentage of restricted shares that will be awarded if maximum target achieved. No definition available.
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- Definition
Percentage of restricted shares that will be awarded if target achieved. No definition available.
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- Definition
Share based compensation arrangement by share based payment award equity instruments other than options granted in period fair value. No definition available.
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- Definition
The aggregate amount of noncash, equity-based employee and director remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. No definition available.
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- Definition
Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. 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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- Details
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