Debt and Other Financing Arrangements - Additional Information (Detail) - USD ($)					3 Months Ended		9 Months Ended
		Mar. 31, 2025	Aug. 14, 2024	Dec. 15, 2022	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 08, 2025	Jun. 04, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Loss on extinguishment of debt						$ (13,052,000)		$ (13,052,000)
Trade receivables					$ 59,000,000	222,600,000	$ 358,400,000	520,200,000
Factored receivables yet not collected					23,700,000		23,700,000				$ 70,900,000
Debt Instrument, Face Amount					662,181,000		662,181,000
Long-term debt					631,954,000		631,954,000				489,388,000
Carrying value					$ 631,954,000		631,954,000				$ 489,388,000
Paid-in-kind interest							$ 27,888,000
Short-term borrowings, weighted average interest rate					12.30%		12.30%
Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount									$ 27,500,000
Increased aggregate principal amount provided in the recapitalization support agreement									$ 172,500,000
Other (Expense) Income, Net [Member]
Debt Instrument [Line Items]
Factoring Fees					$ 800,000	$ 1,900,000	$ 3,500,000	$ 4,200,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Effective interest rate on term loan	[1]				11.60%		11.60%				11.10%
Debt Instrument, Face Amount	[1]				$ 543,113,000		$ 543,113,000				$ 518,700,000
Long-term debt	[1]				$ 517,251,000		517,251,000				$ 488,298,000
Paid-in-kind interest							$ 27,900,000
Delayed Draw Term Loan Facility [Member]
Debt Instrument [Line Items]
Line of credit facility incremental amount										$ 70,000,000
Effective interest rate on term loan	[2]				12.60%		12.60%
Debt Instrument, Face Amount	[2]				$ 75,600,000		$ 75,600,000
Debt instrument, spot interest rate					12.30%		12.30%
Long-term debt	[2]				$ 71,235,000		$ 71,235,000
Upfront fee percentage					3.00%		3.00%
Percentage of exit fee					5.00%		5.00%
Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Prepayment of term loan							$ 2,200,000
Senior Secured Term Loan Facility [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Amount outstanding					$ 17,400,000		$ 17,400,000
Senior Secured Term Loan Facility [Member] | Delayed Draw Term Loan Facility [Member]
Debt Instrument [Line Items]
Line of credit facility maturity date			Jun. 04, 2026
Existing Term Loan Agreement | Minimum [Member]
Debt Instrument [Line Items]
Prepayment of term loan		$ 80,000,000
Existing Term Loan Agreement | Maximum [Member]
Debt Instrument [Line Items]
Prepayment of term loan		$ 115,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Effective interest rate on term loan					12.70%		12.70%
Outstanding borrowings					$ 42,500,000		$ 42,500,000
Debt Instrument, Face Amount					$ 42,473,000		42,473,000
Monthly minimum liquidity threshold							$ 10,000,000
Debt instrument, spot interest rate					10.80%		10.80%
Long-term debt					$ 42,473,000		$ 42,473,000
Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Amount of term loan facility				$ 60,000,000
Line of credit facility maturity date				Dec. 15, 2027
Outstanding borrowings					42,500,000		42,500,000
Revolving Credit Facility [Member] | Senior Secured Term Loan Facility [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Amount of availability					100,000		100,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Derivative liability					$ 600,000		$ 600,000
Debt instrument, spot interest rate					11.70%		11.70%
Term Loan Facility [Member] | Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Amount of term loan facility			$ 520,000,000
Line of credit facility maturity date			Dec. 15, 2028

[1] The Term Loan Facility includes paid-in-kind interest of $27.9 million as of September 30, 2025.

[2] The Delayed Draw Term Loan Facility principal includes an upfront one-time 3.0% fee that was paid-in-kind as of September 30, 2025. Additionally, a 5.0% exit fee is included in the principal amount, which becomes payable on the maturity date.