Consolidated Statements of Income Statement (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues	$ 50,585	$ 63,949	$ 151,461	$ 118,727
Cost of revenues:
Inventor royalties	15,592	14,508	37,269	21,296
Contingent legal fees	12,328	9,739	34,734	17,611
Litigation and licensing expenses - patents	3,501	2,890	10,800	11,019
Amortization of patents	1,946	1,963	8,318	5,542
Verdict insurance proceeds	(12,451)	0	(12,451)	0
Verdict insurance proceeds related costs	7,661	0	7,661	0
Marketing, general and administrative expenses (including non-cash stock compensation expense of $3,568 and $9,891 for the three and nine months ended September 30, 2011, respectively and $1,615 and $5,574 for the three and nine months ended September 30, 2010, respectively)	8,748	6,353	27,031	18,741
Research, consulting and other expenses - business development	850	461	2,893	1,286
Total operating costs and expenses	38,175	35,914	116,255	75,495
Operating income	12,410	28,035	35,206	43,232
Interest and investment income	25	44	78	83
Income from operations before provision for income taxes	12,435	28,079	35,284	43,315
Provision for income taxes	(1,889)	(297)	(9,343)	(605)
Net income including noncontrolling interests in operating subsidiaries	10,546	27,782	25,941	42,710
Net income attributable to noncontrolling interests in operating subsidiaries	257	(3,107)	(646)	(3,389)
Net income attributable to Acacia Research Corporation	$ 10,803	$ 24,675	$ 25,295	$ 39,321
Net income per common share attributable to Acacia Research Corporation:
Basic earnings per share	$ 0.26	$ 0.75	$ 0.65	$ 1.24
Diluted earnings per share	$ 0.25	$ 0.70	$ 0.62	$ 1.14
Weighted average number of shares outstanding, basic	41,292,819	32,794,553	39,178,952	31,776,074
Weighted average number of shares outstanding, diluted	42,857,880	35,105,353	40,733,813	34,448,666