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Contract Assets and Liabilities - Summary of contract liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Contractors [Line Items]
Deferred revenue	$ 227,208		$ 223,654
Accrued loss provision	3,763		3,401
Contract liabilities	230,971		$ 227,055
Contract liabilities, Change	3,941	$ 5,582
Change
Contractors [Line Items]
Deferred revenue, Change	3,554
Accrued loss provision, Change	362
Contract liabilities, Change	$ 3,916

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Its represent the contract with customer, liability excluding provision for loss on contracts, current.

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- Definition

The increase (decrease) during the reporting period of the amount of accrued loss provision.

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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

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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

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