SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Millions				12 Months Ended
	Sep. 07, 2023 USD ($) $ / shares shares	Feb. 14, 2023 USD ($) $ / shares shares	May 15, 2018 $ / shares shares	Dec. 31, 2023 USD ($) vote component $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Equity And Share-Based Compensation
Common stock, shares authorized (in shares)				100,000,000	100,000,000
Common stock, shares issued (in shares)				29,963,000	25,413,000
Common stock, shares outstanding (in shares)				26,496,000	16,129,000
Voting rights per share | vote				1,000
Maximum number of Altisource share-based awards that can be granted under the Plan (in shares)				8,400,000
Share-based awards available for future grants under the Plan (in shares)				1,800,000
Authorized amount (approximately) | $				$ 116.0
Share-based compensation expense | $				5.1	$ 5.1
Estimated unrecognized compensation costs | $				$ 2.1
Weighted average remaining requisite service period for stock options over which unrecognized compensation costs would be recognized				1 year 1 month 20 days
Options outstanding (in shares)				739,189	745,277
Granted (in shares)				0	120,000
Granted (in dollars per share) | $ / shares				$ 0	$ 11.86
Common stock | Public Stock Offering
Equity And Share-Based Compensation
Number of shares issued in transaction	5,590,277	4,550,000
Sale of stock (in usd per share) | $ / shares	$ 3.60	$ 5.00
Net proceeds from sale of stock | $	$ 18.4	$ 20.5
Stock Options, Performance-Based
Equity And Share-Based Compensation
Options outstanding (in shares)				461,000
Stock Options, Performance-Based | Share-based Payment Arrangement, Tranche Two
Equity And Share-Based Compensation
Award vesting percentage (in percent)				25.00%
Stock Options, Performance-Based | Share-based Payment Arrangement, Tranche Four
Equity And Share-Based Compensation
Award vesting percentage (in percent)				25.00%
Stock Options, Performance-Based | Share-based Payment Arrangement, Tranche One
Equity And Share-Based Compensation
Award vesting percentage (in percent)				25.00%
Stock Options, Performance-Based | Share-based Payment Arrangement, Tranche Three
Equity And Share-Based Compensation
Award vesting percentage (in percent)				25.00%
Restricted Shares and Restricted Stock Units (RSUs), Performance-Based
Equity And Share-Based Compensation
Other than options, outstanding (in shares)				141,000
Restricted Shares and Restricted Stock Units (RSUs), Performance-Based | Share-based Payment Arrangement, Tranche Two
Equity And Share-Based Compensation
Award vesting percentage (in percent)				33.00%
Restricted Shares and Restricted Stock Units (RSUs), Performance-Based | Share-based Payment Arrangement, Tranche One
Equity And Share-Based Compensation
Award vesting percentage (in percent)				33.00%
Restricted Shares and Restricted Stock Units (RSUs), Performance-Based | Share-based Payment Arrangement, Tranche Three
Equity And Share-Based Compensation
Award vesting percentage (in percent)				33.00%
Stock Options, Market-Based
Equity And Share-Based Compensation
Options outstanding (in shares)				96,000
Number of components of an award | component				2
Allowable performance period before expiration date (in years)				3 years
Restricted Stock Units (RSUs), Performance-Based
Equity And Share-Based Compensation
Other than options, granted (in shares)				57,000	46,000
Restricted Share Units
Equity And Share-Based Compensation
Other than options, granted (in shares)				891,000	501,000
Other than options, granted (in dollars per share) | $ / shares				$ 4.82	$ 10.33
Restricted Stock Units (RSUs), Market-Based
Equity And Share-Based Compensation
Other than options, granted (in shares)				57,000	46,000
Restricted Shares and Restricted Stock Units (RSUs), Performance-Based and Market-Based
Equity And Share-Based Compensation
Other than options, outstanding (in shares)				125,000
Restricted Shares and Restricted Stock Units (RSUs), Market-Based
Equity And Share-Based Compensation
Other than options, outstanding (in shares)				112,000
Stock Options, Service-Based
Equity And Share-Based Compensation
Options outstanding (in shares)				182,000
Ordinary performance
Equity And Share-Based Compensation
Percentage of awards (in percent)				67.00%
Vesting threshold				2
Restricted Shares and Restricted Stock Units (RSUs), Service-Based
Equity And Share-Based Compensation
Other than options, outstanding (in shares)				884,000
Extraordinary performance
Equity And Share-Based Compensation
Percentage of awards (in percent)				33.00%
Vesting threshold				3
Minimum | Stock Options, Performance-Based
Equity And Share-Based Compensation
Allowable performance period before expiration date (in years)				10 years
Attainment above threshold performance levels, vesting percentage (in percent)				50.00%
Minimum | Stock Options, Market-Based
Equity And Share-Based Compensation
Vesting period (in years)				3 years
Minimum | Restricted Shares and Restricted Stock Units (RSUs), Market-Based
Equity And Share-Based Compensation
Vesting period (in years)				30 days
Award vesting percentage (in percent)				50.00%
Minimum | Stock Options, Service-Based
Equity And Share-Based Compensation
Vesting period (in years)				3 years
Minimum | Ordinary performance
Equity And Share-Based Compensation
Percentage of compounded annual gain of stock price over exercise price required for the award to vest (in percent)				20.00%
Minimum | Restricted Shares and Restricted Stock Units (RSUs), Service-Based
Equity And Share-Based Compensation
Vesting period (in years)				1 year
Minimum | Extraordinary performance
Equity And Share-Based Compensation
Percentage of compounded annual gain of stock price over exercise price required for the award to vest (in percent)				25.00%
Maximum | Stock Options, Performance-Based
Equity And Share-Based Compensation
Attainment above threshold performance levels, vesting percentage (in percent)				200.00%
Maximum | Restricted Shares and Restricted Stock Units (RSUs), Performance-Based
Equity And Share-Based Compensation
Attainment above threshold performance levels, vesting percentage (in percent)				150.00%
Maximum | Stock Options, Market-Based
Equity And Share-Based Compensation
Vesting period (in years)				4 years
Expiration term (in years)				10 years
Maximum | Restricted Shares and Restricted Stock Units (RSUs), Performance-Based and Market-Based
Equity And Share-Based Compensation
Attainment above threshold performance levels, vesting percentage (in percent)				300.00%
Maximum | Restricted Shares and Restricted Stock Units (RSUs), Market-Based
Equity And Share-Based Compensation
Vesting period (in years)				1 year
Award vesting percentage (in percent)				50.00%
Maximum | Stock Options, Service-Based
Equity And Share-Based Compensation
Vesting period (in years)				4 years
Expiration term (in years)				10 years
Maximum | Restricted Shares and Restricted Stock Units (RSUs), Service-Based
Equity And Share-Based Compensation
Vesting period (in years)				4 years
Stock Repurchase Program, Current
Equity And Share-Based Compensation
Number of shares of common stock authorized to be purchased (in shares)			3,100,000
Percentage of outstanding shares authorized to be repurchased			15.00%
Minimum purchase price authorized (in dollars per share) | $ / shares			$ 1.00
Maximum purchase price authorized (in dollars per share) | $ / shares			$ 25.00
Stock repurchase program, period in force			5 years
Remaining number of shares available for repurchase under the plan (in shares)				3,100,000
Stock Repurchase Programs
Equity And Share-Based Compensation
Number of shares of common stock purchased (in shares)				0	0