LOSS PER SHARE - Schedule of Basic and Diluted Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss attributable to Altisource	$ (15,495)	$ (18,475)	$ (27,685)	$ (40,477)
Weighted average common shares outstanding, basic (in shares)	16,083	15,830	16,020	15,774
Weighted average common shares outstanding, diluted (in shares)	16,083	15,830	16,020	15,774
Loss per share:
Basic (in usd per share)	$ (0.96)	$ (1.17)	$ (1.73)	$ (2.57)
Diluted (in usd per share)	$ (0.96)	$ (1.17)	$ (1.73)	$ (2.57)