FAIR VALUE MEASUREMENTS - Additional Information (Details) $ / shares in Units, $ in Thousands					3 Months Ended			6 Months Ended
	Apr. 24, 2023 shares	Mar. 08, 2023 shares	Jan. 31, 2023 shares	Aug. 11, 2021 USD ($) trading_day shares	Jun. 30, 2023 USD ($) shares	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) payorContract shares	Jun. 30, 2022 USD ($)	Feb. 24, 2023 $ / shares shares	Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, liability, recurring basis, level two debt					$ 882,200			$ 882,200			$ 745,900
Business acquisition, equity interest issued value assigned				$ 30,000
Threshold consecutive trading days | trading_day				20
Performance metrics to earn payout						100.00%
Number of acquired payor contracts | payorContract								2
Change in fair value of warrant liabilities					1,677		$ (30,175)	$ (331)	$ (57,337)
2023 Term Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants outstanding (in shares) | shares										29,400,000
2021 Asset Acquisition
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Reclassified to current portions due to sellers						$ 28,700
2022 Asset Acquisition
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Classified to current portions due to sellers					$ 16,700			$ 16,700
Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants exercised (in share) | shares		21,600,000
Class A | 2023 Term Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Exercise price of warrants (in dollars per share) | $ / shares										$ 0.01
Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants outstanding (in shares) | shares					23,000,000			23,000,000
Change in fair value of warrant liabilities								$ (200)
Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants outstanding (in shares) | shares					10,500,000			10,500,000
Change in fair value of warrant liabilities								$ (100)
Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Decrease in fair value					$ (11,800)		$ (5,764)	$ (15,900)	$ (10,425)
Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Shares issued in PIPE financing (in shares) | shares				2,720,966
Settlement of due to seller (in shares) | shares			9,700,000
Exercise price of warrants (in dollars per share) | $ / shares										$ 0.01
Warrants exercised (in share) | shares	7,900,000	21,600,000
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earned share percentage				0.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earned share percentage				100.00%