Revenue from Contracts with Customers - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Contract assets
Unbilled revenue	$ 181,478	$ 124,007
Retainage	68,999	43,042
Contract assets	250,477	167,049	$ 206,235
Contract liabilities, net
Deferred revenue	368,812	279,430
Accrued loss provision	2,570	1,021
Less: retainage	(101,550)	(73,147)
Contract liabilities, net	$ 269,832	$ 207,304	$ 140,108

Contract Contractor, Receivable, Retainage, Netted Against Contract with Customer, Liability

No definition available.

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- Definition

Contract With Customer, Liability, Excluding Provision For Loss On Contracts, Current

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of right to consideration in exchange for good or service transferred to customer withheld under retainage provision in long-term contract or program when right to consideration is unconditional.

+ References

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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- Definition

Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

+ References

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