ACCOUNTS RECEIVABLE (SIGNIFICANT CLIENTS TABLE) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Concentration Risk, Percentage of Revenue from Major Customer
Accounts receivable, net	$ 394,868	$ 417,637
Revenue | Customer Concentration Risk | Financial Services Client
Concentration Risk, Percentage of Revenue from Major Customer
Concentration risk percentage	8.00%	7.00%	12.00%
Revenue | Customer Concentration Risk | Automotive Industry Client
Concentration Risk, Percentage of Revenue from Major Customer
Concentration risk percentage	10.00%	10.00%	9.00%
Accounts Receivable | Credit Concentration Risk | Financial Services Client
Concentration Risk, Percentage of Revenue from Major Customer
Accounts receivable, net	$ 11,656	$ 14,019	$ 15,483
Accounts Receivable | Credit Concentration Risk | Automotive Industry Client
Concentration Risk, Percentage of Revenue from Major Customer
Accounts receivable, net	$ 35,514	$ 38,539	$ 36,466