EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net (loss) income attributable to Altisource	$ (5,844)	$ 1,568	$ (9,028)	$ (2,564)
Weighted average common shares outstanding, basic (in shares)	16,214	17,142	16,253	17,260
Dilutive effect of stock options, restricted shares and restricted share units (in shares)	0	411	0	0
Weighted average common shares outstanding, diluted (in shares)	16,214	17,553	16,253	17,260
(Loss) earnings per share:
Basic (in usd per share)	$ (0.36)	$ 0.09	$ (0.56)	$ (0.15)
Diluted (in usd per share)	$ (0.36)	$ 0.09	$ (0.56)	$ (0.15)
Anti-dilutive securities
Options, restricted shares and restricted share units excluded from the computation of diluted EPS (in shares)	1,500	800	1,500	1,300
Options Whose Exercise Price is Greater than Average Market Price
Anti-dilutive securities
Options, restricted shares and restricted share units excluded from the computation of diluted EPS (in shares)	500	300	400	300
Options and Restricted Shares Issuable upon Achievement of Certain Market and Performance Criteria That Has Not Been Met
Anti-dilutive securities
Options, restricted shares and restricted share units excluded from the computation of diluted EPS (in shares)	800	500	800	500
Employee and Nonemployee Stock Options, Restricted Stock and Restricted Stock Units Whose Impacts are Anti-Dilutive
Anti-dilutive securities
Options, restricted shares and restricted share units excluded from the computation of diluted EPS (in shares)	300		300	500