LONG-TERM DEBT - Narrative (Details)					1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 18, 2023 USD ($)	Mar. 29, 2023	Feb. 14, 2023 USD ($) shares	Jun. 22, 2021 USD ($)	Apr. 30, 2018 USD ($) lender	Sep. 30, 2023 USD ($) shares	Mar. 31, 2023 USD ($)	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($)	Jun. 30, 2023	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Repayments of long-term debt								$ 30,000,000	$ 0
Cash and cash equivalents (less than)						$ 36,640,000		36,640,000	$ 63,812,000		$ 51,025,000
Debt issuance and amendment costs						3,900,000		3,900,000
Accumulated amortization of debt issuance and amendment costs						$ 5,500,000		$ 5,500,000
Debt issuance costs, net											900,000
Accumulated amortization											3,600,000
Altisource S.A.R.L. | Deer Park Road Management Company, LP
Debt Instrument [Line Items]
Noncontrolling ownership percentage (in percent)						15.00%		15.00%
Warrant
Debt Instrument [Line Items]
Warrants and Rights Outstanding			$ 8,100,000
Term B Loans
Debt Instrument [Line Items]
Percentage of consolidated excess cash flow requiring mandatory prepayments (in percent)						0.50		0.50
April 3, 2018 Credit Agreement
Debt Instrument [Line Items]
Number of incremental lenders | lender					1
Accordion feature, potential increase in additional borrowings					$ 50,000,000
April 3, 2018 Credit Agreement | Term B Loans
Debt Instrument [Line Items]
Debt instrument, face amount					412,000,000
Interest rate at the end of the period (in percent)						14.09%		14.09%
April 3, 2018 Credit Agreement | Term B Loans | Deer Park Road Management Company, LP | Altisource S.A.R.L.
Debt Instrument [Line Items]
Long-term debt						$ 40,200,000		$ 40,200,000
Interest received								$ 2,000,000
April 3, 2018 Credit Agreement | Term B Loans | Altisource S.A.R.L. | Deer Park Road Management Company, LP
Debt Instrument [Line Items]
Warrants (in shares) | shares						583,000		583,000
April 3, 2018 Credit Agreement | Term B Loans | Maximum
Debt Instrument [Line Items]
Amount of principal or interest if failed to pay considered as event of default					5,000,000
Amount of debt which results in acceleration of debt if failed to pay considered as event of default					5,000,000
Amount of unbonded, undischarged or unstayed debt under entry by court of one or more judgments for certain period to determine as event of default					$ 10,000,000
April 3, 2018 Credit Agreement | Term B Loans | Base Rate
Debt Instrument [Line Items]
Debt instrument fixed base rate (in percent)			2.00%
April 3, 2018 Credit Agreement | Term B Loans | Variable Rate Component One, Paid In Cash | Base Rate
Debt Instrument [Line Items]
Interest rate margin (in percent)			4.00%
April 3, 2018 Credit Agreement | Term B Loans | Variable Rate Component Two, Paid In Kind | Base Rate
Debt Instrument [Line Items]
Interest rate margin (in percent)			5.00%
Secured Debt | Line of Credit
Debt Instrument [Line Items]
Repayments of long-term debt						$ 10,000,000	$ 20,000,000	$ 30,000,000
PIK Component of Interest Rate (in percent)						0.0375		0.0375		0.0450
Secured Debt | Line of Credit | Maximum
Debt Instrument [Line Items]
Repayments of long-term debt	$ 30,000,000
Secured Debt | Line of Credit | Common stock
Debt Instrument [Line Items]
Warrant shares (in shares) | shares			3,223,851
Secured Debt | Term B Loans | Adjusted Eurodollar Rate
Debt Instrument [Line Items]
Interest rate margin (in percent)		4.00%
Secured Debt | Second Amended Credit Facility | Line of Credit
Debt Instrument [Line Items]
Repayments of long-term debt			$ 30,000,000
Secured Debt | Second Amended Credit Facility | Line of Credit | Variable Rate Component One, Paid In Cash | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Interest rate margin (in percent)			5.00%
Secured Debt | $30 million+ | Line of Credit
Debt Instrument [Line Items]
PIK Component of Interest Rate (in percent)			0.02
Secured Debt | $30 million+ | Line of Credit | Common stock
Debt Instrument [Line Items]
Warrant shares (in shares) | shares			1,612,705
Credit Facility
Debt Instrument [Line Items]
Payment due date default period (in days)				3 days
Debt issuance costs, net						$ 200,000		$ 200,000			300,000
Accumulated amortization						400,000		400,000			300,000
Interest rate (in percent)			10.00%
Failure to perform period (in days)				30 days
Covenant threshold				$ 40,000,000
Borrowings under revolving credit facility						$ 0		$ 0			$ 0
Credit Facility | Maximum
Debt Instrument [Line Items]
PIK Component of Interest Rate (in percent)			0.0200
Cash and cash equivalents (less than)			$ 35,000,000
Credit Facility | April 3, 2018 Credit Agreement | Line of Credit
Debt Instrument [Line Items]
Payment due date default period (in days)					5 days
Credit Facility | Second Revolver Amendment
Debt Instrument [Line Items]
Repayments of long-term debt			4,900,000
Other expenses			3,400,000
Credit Facility | Credit Facility Borrowings Through June 22, 2023
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 15,000,000
Credit Facility | First Revolver Amendment
Debt Instrument [Line Items]
PIK interest rate (in percent)			0.0300
Upfront fee			$ 750,000