SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unbilled contracts receivable	$ 76.5	$ 89.9
Sales allowance, billing-related adjustments	$ 0.8	$ 0.9
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