RECEIVABLES - Summary of Accounts Receivable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 171,908	$ 161,751
Unbilled receivables	47,642	35,933
Allowance for credit losses	(5,866)	(8,912)	$ (9,918)
Accounts receivable, net - discontinued operations	(25,640)	(20,499)
Total	$ 213,684	188,772
Accounts receivable, payment terms	30 days
Continuing Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	$ (4,805)	(7,843)
Total	$ 188,044	$ 168,273