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Goodwill And Other Intangible Assets And Liabilities (Estimated Useful Lives Of Intangible Assets Subject To Periodic Amortization On A Straight-Line Basis) (Detail)
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6 Months Ended |
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Jun. 30, 2012
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Permits [Member] | Minimum [Member]
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| Finite-Lived Intangible Assets [Line Items] | |
| Intangible Assets Estimated Useful Life (years) | 15 years |
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Permits [Member] | Maximum [Member]
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| Finite-Lived Intangible Assets [Line Items] | |
| Intangible Assets Estimated Useful Life (years) | 28 years |
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Utility Contracts [Member]
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| Finite-Lived Intangible Assets [Line Items] | |
| Intangible Assets Estimated Useful Life (years) | 5 years |
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Leases [Member] | Minimum [Member]
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| Finite-Lived Intangible Assets [Line Items] | |
| Intangible Assets Estimated Useful Life (years) | 1 year 6 months |
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Leases [Member] | Maximum [Member]
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| Finite-Lived Intangible Assets [Line Items] | |
| Intangible Assets Estimated Useful Life (years) | 4 years 6 months |
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- Details
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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