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Equity-Based Compensation of the Operating Partnership (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
Units
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Subsidiaries [Member]
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| Employee Service Equity Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized | $ 19.5 |
| Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Authorized | 3,850,000 |
| Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Available for GRant | 1,025,930 |
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Parent Company [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 15.4 |
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- Definition
Employee Service Equity Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized No definition available.
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- Definition
Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Authorized No definition available.
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- Definition
Equity-based Compensation Arragement by Equity-based Payment Award, Number of Units Available for GRant No definition available.
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- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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