Fair Value Information (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 30, 2020	Jan. 31, 2020
Asset Impairment Charges [Abstract]
Property and equipment impairment, net	$ 141.2
Goodwill impairment charge	28.3
Intangible assets impairment	39.2
Goodwill and long-lived asset impairment charge	208.7
Assets, Fair Value Disclosure [Abstract]
Property and equipment fair value, net	52.8
Total fair value	52.8
Asset based revolving line of credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount outstanding	0.0
Fair Value, Inputs, Level 2 \| Senior Secured Notes 11.5 Percent Due 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior secured notes, fair value	$ 92.8	$ 202.5

The amount of impairment loss recognized during the period for property and equipment.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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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 loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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