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REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Revenue from Contract with Customer [Abstract]    
Payment terms 30 days  
Unpaid advanced client billings $ 36,000 $ 16,000
Contract liabilities (customer contract deposits) $ 59,512 $ 42,244
Percentage of unbilled revenue billed during period 90.00% 90.00%
Amount of unbilled revenue billed during period $ 135,000 $ 122,000
Percentage of contract liabilities recognized as revenue during period 90.00% 90.00%
Amount of contract liabilities recognized as revenue $ 227,000 $ 193,000
Lease revenue $ 18,100