Aggregate amount of available cash which may be retained before mandatory prepayment of debt is required.

No definition available.

Name:	ck0000949039_AggregateAmountOfAvailableCashTriggeringRepaymentOfDebt
Namespace Prefix:	ck0000949039_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit collateral coverage ratio.

+ References

No definition available.

+ Details

Name:	ck0000949039_LineOfCreditCollateralCoverageRatio
Namespace Prefix:	ck0000949039_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum collateral coverage ratio required under revolving credit facility.

+ References

No definition available.

+ Details

Name:	ck0000949039_MinimumLineOfCreditCollateralCoverageRatio
Namespace Prefix:	ck0000949039_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum total collateral coverage ratio required under revolving credit facility.

+ References

No definition available.

+ Details

Name:	ck0000949039_MinimumLineOfCreditTotalCollateralCoverageRatio
Namespace Prefix:	ck0000949039_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Sublimit for issuance of letters of credit .

+ References

No definition available.

+ Details

Name:	ck0000949039_SublimitForIssuanceOfLettersOfCredit
Namespace Prefix:	ck0000949039_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Total collateral coverage ratio.

+ References

No definition available.

+ Details

Name:	ck0000949039_TotalCollateralCoverageRatio
Namespace Prefix:	ck0000949039_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Upfront fees.

+ References

No definition available.

+ Details

Name:	ck0000949039_UpfrontFees
Namespace Prefix:	ck0000949039_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Upfront fees incurred in connection with the Senior Revolving Credit Facility, paid in the form of additional loans under the credit agreement.

+ References

No definition available.

+ Details

Name:	ck0000949039_UpfrontFeesIncurred
Namespace Prefix:	ck0000949039_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateTerms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfDebtIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=ck0000949039_SecondLcLenderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=ck0000949039_SeniorSecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=ck0000949039_ExitRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialStandbyLetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ck0000949039_PaymentInKindLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=ck0000949039_ReserveAdjustedLIBORRateSubjectToFloorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=ck0000949039_BaseRateSubjectToFloorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=ck0000949039_FederalFundsEffectiveRatePlusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=ck0000949039_ReserveAdjustedOneMonthLIBORRatePlusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=ck0000949039_ResigningLenderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Prepetition Revolving Credit Facility, Senior Notes and Exit Debt - Exit Revolving Credit Agreement - Additional Information (Detail) - USD ($) $ in Thousands		4 Months Ended	12 Months Ended
	Apr. 23, 2021	Apr. 23, 2021	Dec. 31, 2022	Dec. 31, 2021	Mar. 23, 2023	Feb. 24, 2023	Feb. 21, 2023	Sep. 30, 2022	Aug. 31, 2022
Debt Instrument [Line Items]
Debt issuance costs		$ 6,218
Second Lc Lender [Member]
Debt Instrument [Line Items]
Amount available for general purposes					$ 400,000
Senior Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount available for general purposes	$ 400,000	400,000
Sublimit for issuance of letters of credit	100,000	100,000
Exit Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount available for general purposes					$ 50,000			$ 75,000	$ 100,000
Line of credit	103,500	103,500	$ 177,500
Incurred in exchange for certain obligations	100,000
Upfront fees incurred	3,500
Aggregate amount of available cash triggering repayment of debt	$ 125,000	$ 125,000
Debt instrument, interest rate term description			Loans outstanding under the Exit RCF bear interest at a rate per annum equal to the applicable margin plus, at the Borrower’s option, either: (i) the reserve-adjusted London Interbank Offered Rate (or LIBOR Rate), subject to a floor of 1.00%, or (ii) a base rate, subject to a floor of 2.00%, determined as the greatest of (x) the rate per annum publicly announced from time to time by Wells Fargo Bank, National Association, as its prime rate (or the Wells Fargo Prime Rate), (y) the federal funds effective rate plus ½ of 1.00%, and (z) the reserve-adjusted one-month LIBOR Rate plus 1.00%. The applicable margin was initially 4.25% per annum for LIBOR Rate loans and 3.25% per annum for base rate loans. Mandatory prepayments and, under certain circumstances, commitment reductions are required under the Exit RCF in connection with certain specified asset dispositions (subject to reinvestment rights if no event of default exists). Available Cash (as defined in the Exit Revolving Credit Agreement) in excess of $125 million is also required to be applied periodically to prepay loans (without a commitment reduction). The loans under the Exit RCF may be voluntarily prepaid and the commitments thereunder voluntarily terminated or reduced by the Borrower at any time without premium or penalty, other than customary breakage costs.
Line of credit facility commitment fee percentage	0.50%
Minimum line of credit collateral coverage ratio	2.00%
Minimum line of credit total collateral coverage ratio	1.30%
Debt issuance costs				$ 6,600
Upfront fees				$ 3,500
Borrowing accrue interest			8.63%
Exit Revolving Credit Facility [Member] \| Financial Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit			$ 19,400
Exit Revolving Credit Facility [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Line of credit						$ 162,500
Amount available for issuance of letter of credit under credit facility						221,600
Exit Revolving Credit Facility [Member] \| Subsequent Event [Member] \| Financial Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit						$ 19,400
Exit Revolving Credit Facility [Member] \| PIK Loans [Member]
Debt Instrument [Line Items]
Line of credit			$ 3,500
Exit Revolving Credit Facility [Member] \| Reserve-Adjusted LIBOR Rate Subject To Floor [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Exit Revolving Credit Facility [Member] \| Base Rate Subject to Floor [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Exit Revolving Credit Facility [Member] \| Federal Funds Effective Rate Plus [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Exit Revolving Credit Facility [Member] \| Reserve-Adjusted One Month LIBOR Rate Plus [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Exit Revolving Credit Facility [Member] \| Libor Rate Loans [Member]
Debt Instrument [Line Items]
Interest rate of senior notes	4.25%	4.25%
Exit Revolving Credit Facility [Member] \| Base Rate Loans [Member]
Debt Instrument [Line Items]
Interest rate of senior notes	3.25%	3.25%
Exit Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Amount available for general purposes	$ 400,000	$ 400,000
Aggregate amount of available cash	$ 125,000	$ 125,000
Exit Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Collateral coverage ratio	2.00%
Total collateral coverage ratio	1.30%
Exit Revolving Credit Facility [Member] \| Resigning Lender [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Amount available for general purposes									$ 25,000
Exit Revolving Credit Facility [Member] \| Second Lc Lender [Member] \| Letter of Credit [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Amount available for general purposes							$ 25,000