Long-term Debt (Schedule of Aggregate Maturities of Long-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Debt Disclosure [Abstract]
2013	$ 4.6
2014	4.7
2015	20.7
2016	3.7
2017	147.1
Thereafter	285.2
Total long-term debt maturities, gross	$ 466.0

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No definition available.

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Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four

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Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal after Year Five

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Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three

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No definition available.

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No definition available.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number APB14-1

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Section S99

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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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