Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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- Definition

Debt Instrument, Covenant, Required Redemption, Minimum Consecutive Period

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Debt Instrument, Covenant Terms, Maximum Consolidated First Lien Net Leverage Ratio

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Debt Instrument, Covenant Terms, Minimum Liquidity Requirement

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Debt Instrument, Debt Default, Option to Accelerate Amounts Due, Minimum Percentage of Aggregate Principal Amount of Debt Held

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Debt Instrument, Event of Default, Failure to Pay Unfavorable Judgements, Maximum Allowable Amount

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- Definition

Debt Instrument, Fair Value, Excluding The Redemption Note

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Debt Instrument, Redemption Percentage, Redeemable From Cash Proceeds From Equity Offerings, Maximum

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Debt Instrument, Redemption Price, Percentage, Redeemable From Cash Proceeds From Equity Offerings

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- Definition

Long Term Debt Excluding Redemption Note

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- Definition

Payment Default Classification Period For Interest Payment

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Long-Term Debt - Additional Information (Detail)				2 Months Ended	9 Months Ended
Long-Term Debt - Additional Information (Detail)	Aug. 26, 2020 USD ($)	Jun. 19, 2020 USD ($)	Apr. 14, 2020 USD ($)	Aug. 26, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Apr. 10, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Payment of related fees and expenses					$ 20,350,000	$ 22,359,000
Fair value, excluding the redemption note					12,340,000,000			$ 10,800,000,000
Long-term debt excluding the Redemption Note					$ 12,900,000,000			$ 10,520,000,000
WML \| 2026 and 2028 WML Notes \| Senior Notes
Debt Instrument [Line Items]
Payment default classification period for interest payment				30 days
Event of default, failure to pay unfavorable judgements, maximum allowable amount				$ 50,000,000
Payment of related fees and expenses				14,200,000
Debt issuance costs	$ 14,200,000			$ 14,200,000
WML \| 2026 and 2028 WML Notes \| Senior Notes \| Material Adverse Effect
Debt Instrument [Line Items]
Debt redemption price as percentage of principal				100.00%
Minimum number of consecutive days				10 days
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 250,000,000.0	$ 750,000,000.0		$ 250,000,000.0
Stated interest rate	5.50%	5.50%		5.50%	5.50%
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption percentage, redeemable from cash proceeds from equity offerings		35.00%
Debt redemption price as percentage of principal, redeemable from cash proceeds from equity offerings		105.50%
Debt redemption price as percentage of principal		100.00%
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes \| Redemption Period Two \| Maximum
Debt Instrument [Line Items]
Debt redemption price as percentage of principal		104.125%
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes \| Redemption Period Two \| Minimum
Debt Instrument [Line Items]
Debt redemption price as percentage of principal		100.00%
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes \| Change of Control
Debt Instrument [Line Items]
Debt redemption price as percentage of principal		101.00%
WML \| WML 5 1/2% Senior Notes, due 2026 \| Senior Notes \| Change in or Amendment to Tax Laws or Tax Positions
Debt Instrument [Line Items]
Debt redemption price as percentage of principal		100.00%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 600,000,000.0			$ 600,000,000.0
Stated interest rate	5.625%			5.625%	5.625%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption percentage, redeemable from cash proceeds from equity offerings	35.00%
Debt redemption price as percentage of principal, redeemable from cash proceeds from equity offerings	105.625%
Debt redemption price as percentage of principal	100.00%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes \| Redemption Period Two \| Maximum
Debt Instrument [Line Items]
Debt redemption price as percentage of principal	102.813%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes \| Redemption Period Two \| Minimum
Debt Instrument [Line Items]
Debt redemption price as percentage of principal	100.00%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes \| Change of Control
Debt Instrument [Line Items]
Debt redemption price as percentage of principal	101.00%
WML \| WML 5 5/8% Senior Notes, due 2028 \| Senior Notes \| Change in or Amendment to Tax Laws or Tax Positions
Debt Instrument [Line Items]
Debt redemption price as percentage of principal	100.00%
WRF \| WRF Credit Facilities \| Credit Agreement \| During Financial Covenant Relief Period
Debt Instrument [Line Items]
Minimum liquidity required to be maintained at all times during Financial Covenant Relief Period							$ 300,000,000.0
WRF \| WRF Credit Facilities \| Credit Agreement \| First Fiscal Quarter of the Financial Covenant Increase Period
Debt Instrument [Line Items]
Maximum consolidated first lien net leverage ratio							4.50
WRF \| WRF Credit Facilities \| Credit Agreement \| Second Fiscal Quarter of the Financial Covenant Increase Period
Debt Instrument [Line Items]
Maximum consolidated first lien net leverage ratio							4.25
WRF \| WRF Credit Facilities \| Credit Agreement \| Third Fiscal Quarter of the Financial Covenant Increase Period
Debt Instrument [Line Items]
Maximum consolidated first lien net leverage ratio							4.00
WRF \| WRF Credit Facilities \| Credit Agreement \| Each Subsequent Fiscal Quarter Thereafter of the Financial Covenant Increase Period
Debt Instrument [Line Items]
Maximum consolidated first lien net leverage ratio							3.75
WRF \| WRF 5 1/8% Senior Notes, due 2029 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate					5.125%
WRF \| WRF 7 3/4% Senior Notes, due 2025 \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount			$ 600,000,000.0
Stated interest rate			7.75%		7.75%
Payment of related fees and expenses			$ 5,600,000
Debt issuance costs			$ 5,200,000
Event of default, option to accelerate amounts due, minimum percentage of aggregate principal amount of debt held			25.00%
WRF \| WRF 7 3/4% Senior Notes, due 2025 \| Senior Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption percentage, redeemable from cash proceeds from equity offerings			35.00%
Debt redemption price as percentage of principal, redeemable from cash proceeds from equity offerings			107.75%
Debt redemption price as percentage of principal			100.00%
WRF \| WRF 7 3/4% Senior Notes, due 2025 \| Senior Notes \| Redemption Period Two
Debt Instrument [Line Items]
Debt redemption price as percentage of principal			101.00%