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Plan of Reorganization, Terms of Plan, Holders of Allowed Claims, Percentage of Common Stock Outstanding Upon Reorganization

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Warrants Issued For Purchase Of Stock Shares

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Total amount of liabilities subject to compromise.

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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 maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Emergence from Chapter 11 (Detail)	Jun. 04, 2018 USD ($) director $ / shares shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2018 $ / shares shares	Jun. 03, 2018 USD ($) $ / shares shares	May 13, 2011
Debt Instrument [Line Items]
Cancellation of certain prepetition obligations \| $	$ 2,647,110,000			$ 2,647,110,000
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000		100,000,000
Number of independent directors selected by the holders of the Term Loan (director) \| director	6
Senior Notes \| Senior Notes at 7.75%
Debt Instrument [Line Items]
Cancellation of certain prepetition obligations \| $	$ 610,000,000
Interest rate	7.75%				7.75%
Pro rata share of new common stock and warrants (percent)	16.50%
Term Loan
Debt Instrument [Line Items]
Cancellation of certain prepetition obligations \| $	$ 1,700,000,000
Term Loan \| Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Term Loan entered into by the Successor Company \| $	$ 1,300,000,000.0
Pro rata share of new common stock and warrants (percent)	83.50%
Class A Common Stock
Debt Instrument [Line Items]
Common stock, par value (USD per share) \| $ / shares	$ 0.0000001	$ 0.0000001	$ 0.0000001	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000	93,750,000
Common stock, shares issued (in shares)	11,052,211	15,750,097	12,995,080
Class B Common Stock
Debt Instrument [Line Items]
Common stock, par value (USD per share) \| $ / shares	$ 0.0000001	$ 0.0000001	$ 0.0000001	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000	75,000,000
Common stock, shares issued (in shares)	5,218,209	1,926,848	3,560,604
Class C common stock
Debt Instrument [Line Items]
Common stock, par value (USD per share) \| $ / shares				$ 0.01
Common stock, shares authorized (in shares)				80,609
Series 1 warrants
Debt Instrument [Line Items]
Number of warrants issued (shares)	3,016,853
Series 2 warrants
Debt Instrument [Line Items]
Number of warrants issued (shares)	712,736