Long-Term Debt Leases (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Long-term Debt, Weighted Average Interest Rate	6.40%	6.30%	8.00%
Sale Leaseback Transaction, Net Proceeds, Investing Activities	$ 0	$ 24.1	$ 12.1
Operating leases, future minimum payments due, current	19.9
Operating leases, future minimum payments, due in two years	18.5
Operating leases, future minimum payments, due in three years	15.1
Operating leases, future minimum payments, due in four years	7.9
Operating leases, future minimum payments, due in five years	3.5
Operating lease expense	23.6us-gaap_OperatingLeasesRentExpenseNet	17.6us-gaap_OperatingLeasesRentExpenseNet	9.0us-gaap_OperatingLeasesRentExpenseNet
Capital Lease Obligations [Member]
Capital leased assets, gross	6.7	6.7
Capital leases, balance sheet, assets by major class, net	$ 5.0	$ 5.3
Long-term Debt, Weighted Average Interest Rate	8.90%

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 30

-Section 50

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Weighted average interest rate of long-term debt outstanding.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

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

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

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

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Amount of cash inflow after closing and deferred financing costs received by a seller-lessee in a sale-leaseback recognized in investing activities.

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