EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
EARNINGS PER SHARE
Net income attributable to Altisource (in dollars)	$ 30,931	$ 28,081	$ 58,449	$ 53,310
Weighted-average common shares outstanding, basic	23,161,000	23,316,000	23,267,000	23,353,000
Dilutive effect of stock options (in shares)	1,662,000	1,530,000	1,673,000	1,497,000
Weighted-average common shares outstanding, diluted	24,823,000	24,846,000	24,940,000	24,850,000
Earnings per share
Basic (in dollars per share)	$ 1.34	$ 1.20	$ 2.51	$ 2.28
Diluted (in dollars per share)	$ 1.25	$ 1.13	$ 2.34	$ 2.15
Options
Anti-dilutive securities
Options excluded from the computation of diluted EPS (in shares)			100,000
Options | Maximum
Anti-dilutive securities
Options excluded from the computation of diluted EPS (in shares)	100,000	100,000		100,000
Options for shares issuable upon achievement of market and performance criteria
Anti-dilutive securities
Options excluded from the computation of diluted EPS (in shares)	100,000	300,000	100,000	300,000