Schedule of long-term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Jan. 08, 2015
Debt Instrument [Line Items]
Capital leases	$ 4.1
Current portion of long-term debt	(2.3)
Total long-term debt, net	312.1
Senior Secured Notes
Debt Instrument [Line Items]
Principal amount outstanding	305.0	$ 305.0
Unamortized original issue discount and issuance costs	(14.3)
Senior Secured Notes, net	290.7
Asset Based Facility
Debt Instrument [Line Items]
Principal amount outstanding	22.0
Unamortized original issue discount and issuance costs	(2.4)
Senior Secured Notes, net	$ 19.6

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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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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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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