Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income attributable to Acacia Research Corporation	$ 6,321	$ 2,139	$ 56,249	$ 14,492
Other comprehensive income:
Unrealized gain on short-term investments, net of income tax benefit (expense) of $64 and $(332) for the three and six months ended June 30, 2012, respectively, and $0 for the three and six months ended June 30, 2011	158	0	2,588	0
Add: reclassification adjustment for losses included in net income	39	0	39	0
Comprehensive income	$ 6,518	$ 2,139	$ 58,876	$ 14,492