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Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
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Mar. 31, 2012
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| Intangible Assets [Abstract] | |
| Intangible asset amortization expense | $ 12.2 |
| Estimated amortization expense, 2012 | 48.7 |
| Estimated amortization expense, 2013 | 46.3 |
| Estimated amortization expense, 2014 | 44.6 |
| Estimated amortization expense, 2015 | 42.8 |
| Estimated amortization expense, 2016 | $ 41.1 |
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- Definition
Aggregate amount of intangible asset amortization recognized as expense during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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