Accounts Receivable and Allowance for Expected Credit Losses - Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts receivable:
Billed receivables	$ 560,046	$ 513,459
Unbilled receivables	290,352	236,285
Allowance for expected credit losses	(40,520)	(38,387)
Accounts receivable, net	$ 809,878	$ 711,357

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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-Publisher FASB
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- References

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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