CONTRACT ASSETS AND CONTRACT LIABILITIES - Summary of Accounts Receivable and Unbilled, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Accounts receivable	$ 275,932	$ 213,169
Unbilled receivables	22,475	40,405
Less: allowance for doubtful accounts	(7)	(170)	$ (171)	$ (346)
Total accounts receivable and unbilled, net	$ 298,400	$ 253,404