Debt Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 163.7	$ 234.6
Deferred issuance costs	0.1	0.5
Long-term debt, current and noncurrent	163.6	234.1
Long-term debt, current	6.1
Long-term debt	157.5	234.1
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, face amount	74.3
Long-term debt, interest	58.1
Long-term debt, carrying amount	132.4
Debt Instrument Carrying Amount Current and Noncurrent	138.5
Payment in Kind (PIK) Note [Member]
Debt Instrument [Line Items]
Long-term debt, carrying amount		234.6
Debt Instrument Carrying Amount Current and Noncurrent	$ 31.3	$ 234.6

Debt Instrument Carrying Amount Current and Noncurrent

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB
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-SubTopic 30
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Amount of long-term debt classified as other.

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