SUPPLEMENTAL BALANCE SHEET INFORMATION - Composition of Trade Receivables and Contract Assets, Net (Details) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Supplemental Balance Sheet Information [Abstract]
Client receivables	$ 489,452	$ 489,042
Unbilled revenue	160,609	135,400
Total	650,061	624,442
Less: Allowance for credit losses	(7,180)	(6,702)
Trade receivables and contract assets, net	$ 642,881	$ 617,740

-- None. No documentation exists for this element. --

No definition available.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for billed goods or services.

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No definition available.

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- Definition

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.

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

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Amount, before 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.

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