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Debt - Senior Secured Term Loan (Details) - USD ($) $ in Thousands			3 Months Ended	9 Months Ended		12 Months Ended
	Oct. 19, 2023	Oct. 27, 2022	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Interest expense
Amortization of debt issuance costs				$ 891	$ 1,574
Effective interest rate				9.90%
Blackstone Credit Agreement
Debt Facility
Maximum borrowing capacity		$ 950,000
Debt issuance costs capitalized		$ 11,600
Principal						$ 300,000
Repayment of senior secured term loan						(300,000)
Interest expense
Contractual interest expense			$ 9,554		28,087
Amortization of debt issuance costs			280		702
Total			$ 9,834		$ 28,789
Effective interest rate			13.10%		13.10%
Blackstone Credit Agreement | Adjusted Term SOFR
Debt Facility
Basis spread on variable rate		7.25%
Floor interest rate		1.00%
Blackstone Credit Agreement | Base Rate
Debt Facility
Basis spread on variable rate		6.25%
Floor interest rate		2.00%
Committed Loan Facility
Debt Facility
Maximum borrowing capacity		$ 450,000
Fund draw term		18 months
Loan term		7 years
Senior Secured Term Loan
Debt Facility
Principal		$ 300,000
Repayment of senior secured term loan	$ (300,000)
Payment of accrued interest	2,100
Prepayment premiums, expenses and other exit fees	82,000					82,000
Legal fees	$ 200
Loss on extinguishment of debt						92,700
Debt issuance costs						$ 10,700
Committed Delayed Draw Term Loan Facility
Debt Facility
Maximum borrowing capacity		150,000
Uncommitted Incremental Facility
Debt Facility
Maximum borrowing capacity		$ 500,000

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