SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Changes in Contractual Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Balance, beginning of year	$ 31,274	$ 21,281	$ 15,433
Add: allowance for contractual adjustments	41,158	27,459	20,916
Less: contractual adjustments	(31,043)	(17,466)	(15,068)
Balance, end of year	$ 41,389	$ 31,274	$ 21,281