Schedule of long-term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Jan. 08, 2015
Debt Instrument [Line Items]
Asset-Based Facility, net	$ 54.9
Capital leases	4.5
Current portion of long-term debt	(1.8)
Total long-term debt, net	347.9
Senior Secured Notes
Debt Instrument [Line Items]
Principal amount outstanding	305.0	$ 305.0
Unamortized original issue discount and issuance costs	(14.7)
Senior Secured Notes, net	290.3
Asset Based Facility
Debt Instrument [Line Items]
Principal amount outstanding	57.5
Unamortized debt issuance costs	$ (2.6)

Principal balance outstanding on the Asset-Based Facility.

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Unamortized original issue discount and issuance costs.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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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.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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