LOSS PER SHARE - Schedule of Basic and Diluted Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to Altisource	$ (12,190)	$ (22,002)
Weighted average common shares outstanding, basic (in shares)	15,956	15,717
Weighted average common shares outstanding, diluted (in shares)	15,956	15,717
Loss per share:
Basic (in usd per share)	$ (0.76)	$ (1.40)
Diluted (in usd per share)	$ (0.76)	$ (1.40)