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Benefit Plans (Details 2) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2012
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Mar. 31, 2011
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| Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] | ||
| SERP & SRIP | $ 0.8 | $ 0.7 |
| Defined Contribution Plan | 4.5 | 3.7 |
| Benefit Cost | $ 5.3 | $ 4.4 |
| X | ||||||||||
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- Definition
Benefit Cost. No definition available.
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| X | ||||||||||
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- Definition
Supplemental Executive Retirement Plan and Supplemental Retirement Income Plan. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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