SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unbilled contracts receivable	$ 149.9	$ 152.4
Sales allowance, billing-related adjustments	$ 1.9	$ 1.6
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period, past due for payment of services provided	30 days
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period, past due for payment of services provided	60 days