SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) financial_institution	Dec. 31, 2023 USD ($)
Accounting Policies [Abstract]
Number of financial institutions maintaining cash | financial_institution	2
Allowance for credit loss	$ 0.6	$ 1.0
Allowance for credit loss, writeoff	$ 0.5	$ 0.0