Carrying Value and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Term Loan
Long-term Debt, Excluding Current Maturities
Term Loan		$ 1.5
Carrying Value \| Level 1
Assets
Cash and cash equivalents	$ 18.5	27.2
Restricted cash and restricted cash equivalents	9.2	5.5
Carrying Value \| Significant Other Observable Inputs (Level 2)
Assets
Financing receivable	32.5	28.4
Carrying Value \| Level 3
Long-term Debt, Excluding Current Maturities
Redeemable Preferred Stock	25.1	24.9
Carrying Value \| Level 3 \| Other Noncurrent Assets
Assets
Loans receivable, net, carrying amount	0.7	0.8
Carrying Value \| Senior Secured Notes \| Level 1
Long-term Debt, Excluding Current Maturities
Senior Secured Notes	296.0	294.9
Carrying Value \| ABL Facility \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Asset-Based Facility	77.2
Carrying Value \| Asset-Based Facility \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Asset-Based Facility		55.5
Carrying Value \| Term Loan \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Term Loan		1.5
Estimated Fair Value \| Level 1
Assets
Cash and cash equivalents	18.5	27.2
Restricted cash and restricted cash equivalents	9.2	5.5
Estimated Fair Value \| Significant Other Observable Inputs (Level 2)
Assets
Financing receivable	32.5	28.4
Estimated Fair Value \| Level 3
Long-term Debt, Excluding Current Maturities
Redeemable Preferred Stock	27.8	26.8
Estimated Fair Value \| Level 3 \| Other Noncurrent Assets
Assets
Loans receivable, net, carrying amount	0.7	0.8
Estimated Fair Value \| Senior Secured Notes \| Level 1
Long-term Debt, Excluding Current Maturities
Senior Secured Notes	307.5	307.5
Estimated Fair Value \| ABL Facility \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Asset-Based Facility	$ 78.2
Estimated Fair Value \| Asset-Based Facility \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Asset-Based Facility		57.0
Estimated Fair Value \| Term Loan \| Significant Other Observable Inputs (Level 2)
Long-term Debt, Excluding Current Maturities
Term Loan		$ 1.5

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Restricted cash and restricted cash equivalents disclosure.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Fair value of the amount outstanding under the credit facility.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of shares that an entity is required to redeem for cash or other assets at a fixed or determinable date or upon the occurrence of an event.

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Fair value portion of notes payable.

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Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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