Debt Instrument, Covenant, First Lien Leverage Ratio Test, Borrowings Exceed Total Commitments, Percent

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Debt Instrument, Covenant, Required Prepayment, First Lien Leverage Ratio

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Debt Instrument, Premium (Discount), Percent Of Par Value

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Debt Instrument, Quarterly Aggregate Payment, Percent

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

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

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

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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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Face (par) amount of the original debt instrument that was repurchased.

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Amount, after accumulated amortization, of debt discount.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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NOTES PAYABLE AND COMMERCIAL BANK FINANCING - Bank Credit Agreement (Details)			1 Months Ended	12 Months Ended
	Apr. 21, 2022 USD ($)	Apr. 01, 2021 USD ($)	Jan. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Aug. 23, 2019
Debt Instrument [Line Items]
Unamortized debt discount					$ 23,000,000
Remaining continuing to mature				$ 34,000,000	35,000,000
Gain (loss) on extinguishment of debt				$ 15,000,000	3,000,000	$ (7,000,000)
STG Term Loan B-3
Debt Instrument [Line Items]
Aggregate principal amount		$ 740,000,000
Unamortized debt discount		$ 4,000,000
Term Loan B-3 \| Term Loan \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		3.00%		3.00%
STG Term Loan B-4 \| Term Loan
Debt Instrument [Line Items]
Aggregate principal amount	$ 750,000,000
Unamortized debt discount				$ 23,000,000
Proportion of par (as a percent)	97.00%
Gain (loss) on extinguishment of debt					$ (10,000,000)
STG Term Loan B-4 \| Term Loan \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.75%
STG Term Loan B-4 \| Term Loan \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.75%
5.875% Senior Notes due 2026 \| Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.875%
Term Loan B-2 \| Term Loan
Debt Instrument [Line Items]
Quarterly payment (as a percent)							1.00%
Redeemed aggregate principal amount				30,000,000
Repayments of secured debt				$ 26,000,000
Term Loan B-2 \| Term Loan \| Subsequent Event
Debt Instrument [Line Items]
Redeemed aggregate principal amount			$ 27,000,000
Repayments of secured debt			$ 25,000,000
Term Loan B-2 \| Term Loan \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				2.50%
STG Term Loan B-2 \| Term Loan
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt				$ 3,000,000
STG Revolving Credit Facility
Debt Instrument [Line Items]
Required prepayment, first lien leverage ratio				4.5
Percent of borrowings exceeding total commitments				35.00%
Aggregate borrowings outstanding	$ 612,500,000
Amount drawn from credit facility	650,000,000
Remaining continuing to mature	$ 37,500,000