Debt (Property Financing Uncommitted Credit, Long-Term Debt And Interest Rate Swaps) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
Mar. 31, 2007	Sep. 30, 2004	Dec. 31, 2012
Debt Instrument [Line Items]
Sale leaseback transaction, net book value	$ 20.3	$ 8.5
Sale leaseback transaction, net proceeds	58.1	9.7
Sales leaseback transaction, lease term (in years)		10 years
Sales leaseback transaction, effective interest rate (as a percent)		5.37%
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months			31.8
Long-term Debt, Maturities, Repayments of Principal in Year Two			9.8
Long-term Debt, Maturities, Repayments of Principal in Year Three			1.3
Long-term Debt, Maturities, Repayments of Principal in Year Four			0.5
Long-term Debt, Maturities, Repayments of Principal in Year Five			1,069.2
Long-term Debt, Maturities, Repayments of Principal Thereafter			$ 499.6

Sale Leaseback Transaction, Lease Term

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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- Definition

The financing cost related to leases that have been recorded under the deposit method, as a financing or as a capital leases in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Imputed Interest Rate

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

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The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 98

-Section Appendix A

-Paragraph 28, 29

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The gross proceeds received from the asset(s) sold in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller less the costs incurred in connection with the transaction, such as closing and deferred financing costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 98

-Section Appendix A

-Paragraph 28, 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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