Accreted value of redeemable preferred stock.

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Expected redemption date.

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Multiple of invested capital as minimum return.

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Number of days to purchase shares of common stock at price per share less than the fair market value per share.

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Payments of redeemable convertible preferred stock issuance costs.

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Percentage of share purchase price for redemption in cash.

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Percentage of volume weighted average price of common stock for redemption in shares.

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Period of accretion adjustment to retained earnings (deficit).

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Preferred stock applicable dividend rate when prior dividend unpaid.

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Preferred stock dividend rate per quarter.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Amount of the cumulative effect on retained earnings net of related income tax effect.

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- Definition

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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The percentage rate used to calculate dividend payments on preferred stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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Number of new stock issued during the period.

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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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The per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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Redeemable Preferred Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Nov. 29, 2018	Dec. 31, 2018	Dec. 31, 2017
Temporary Equity [Line Items]
Shares issued		2,000,000	15,000,000
Payment of directly related issuance costs		$ 18.0
Redeemable Preferred Stock [Member]
Temporary Equity [Line Items]
Preferred stock dividend rate	12.00%	12.00%
Accreted value of redeemable preferred stock		$ 1,000.00
Preferred stock dividend rate per quarter		3.00%
Preferred stock applicable dividend rate when prior dividend unpaid		13.00%
Temporary equity, liquidation preference per share		$ 1,200.00
Percentage of share purchase price for redemption in cash		101.00%
Percentage of volume weighted average price of common stock for redemption in shares		96.00%
Redeemable preferred stock		$ 230.0
Period of accretion adjustment to retained earnings deficit		7 years
Expected redemption date		Nov. 29, 2025
Cumulative catch-up adjustment to opening Retained earnings (Accumulated deficit)		$ 1.0
Number of days to purchase shares of common stock at price per share less than the fair market value per share		60 days
Redeemable Preferred Stock [Member] \| Prior to January 1, 2020
Temporary Equity [Line Items]
Multiple of invested capital as minimum return		1.2
Redeemable Preferred Stock [Member] \| On or After January 1, 2020 But Prior to January 1, 2022
Temporary Equity [Line Items]
Multiple of invested capital as minimum return		1.25
Redeemable Preferred Stock [Member] \| On or After January 1, 2022 But Prior to January 1, 2023
Temporary Equity [Line Items]
Multiple of invested capital as minimum return		1.20
Redeemable Preferred Stock [Member] \| On or After January 1, 2023 But Prior to January 1, 2025
Temporary Equity [Line Items]
Multiple of invested capital as minimum return		1.15
Redeemable Preferred Stock [Member] \| On or After January 1, 2025
Temporary Equity [Line Items]
Multiple of invested capital as minimum return		1.20
Private Placement [Member] \| Redeemable Preferred Stock [Member]
Temporary Equity [Line Items]
Shares issued	300,000
Preferred stock dividend rate	12.00%
Preferred stock par value	$ 1.00
Proceeds from issuance of warrants, net of discount		$ 289.5
Payment of directly related issuance costs		18.0
Fair value of warrants		$ 43.0
Private Placement [Member] \| Series A Warrants [Member]
Temporary Equity [Line Items]
Warrants to purchase common shares	6,800,000
Initial excise price per share	$ 0.01
Proceeds from issuance of warrants, net of discount	$ 289.5
Payment of directly related issuance costs	$ 18.0