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RECEIVABLES, CONTRACT ASSETS, AND DEFERRED REVENUE- Contract Effective (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Receivables [Abstract]
2021	$ 182,427
2020	104,416
2019	34,544
2018	16,296
2017 and prior	18,820
Unbilled revenue total	$ 356,503
2021	51.00%
2020	29.00%
2019	10.00%
2018	5.00%
2017 and prior	5.00%
Total percentage of unbilled revenue	100.00%

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Total Percentage of Unbilled Revenue

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