REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Client Receivables, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 25, 2021
Revenue from Contract with Customer [Abstract]
Client receivables	$ 559,410	$ 489,452
Unbilled revenue	204,258	160,609
Total	763,668	650,061
Allowance for doubtful accounts	(11,278)	(7,180)
Trade receivables and contract assets, net	752,390	642,881
Current deferred revenue	264,259	219,703
Long term deferred revenue (included in Other long-term liabilities)	25,795	20,578
Customer contract deposits (included in Other current-liabilities)	$ 91,640	$ 59,512

Contract With Customer Liability, Customer Deposits

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Contract With Customer Liability, Deferred Revenue, Current

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Contract With Customer Liability, Deferred Revenue, Noncurrent

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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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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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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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