Long-Term Debt Maturity Schedule (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Debt Disclosure [Abstract]
2015	$ 61.8
2016 & 2017	0
2018	45.1
2019	0.1
Thereafter	916.8
Aggregate maturities	$ 1,023.8us-gaap_DebtInstrumentCarryingAmount

Long-term Debt, Maturities, Repayments of Principal after Year Five, Gross

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- Definition

Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months, Gross

+ References

No definition available.

+ Details

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- Definition

Long-term Debt, Maturities, Repayments of Principal in Year Five, Gross

+ References

No definition available.

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- Definition

Long-term Debt, Maturities, Repayments of Principal in Year Four, Gross

+ References

No definition available.

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- Definition

Long-term Debt, Maturities, Repayments of Principal in Year Two and Year Three, Gross

+ References

No definition available.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or 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 02

-Paragraph 20

-Article 5

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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