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Share-Based And Cash-Based Incentive Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Common stock available for award under the Plan | 2,269,745 | ||
| Restricted stock vested, fair value | $ 7.9 | $ 8.1 | $ 7.4 |
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Directors Compensation Plan [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Common stock available for award under the Plan | 568,783 | ||
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Restricted Stock [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Shares granted, grant date fair value | 0.5 | 0.4 | 10.9 |
| Unrecognized share-based compensation expense | 0.6 | ||
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Restricted Stock Units (RSUs) [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Shares granted, grant date fair value | 14.4 | 12.0 | |
| Unrecognized share-based compensation expense | $ 15.7 | ||
| X | ||||||||||
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- Definition
As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Share based compensation arrangement by share based payment award equity instruments other than options granted in period grant date fair value. No definition available.
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