Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 34,939	$ 50,585	$ 184,463	$ 151,461
Cost of revenues:
Inventor royalties	5,032	15,592	22,199	37,269
Contingent legal fees	8,833	12,328	19,188	34,734
Litigation and licensing expenses - patents	5,973	3,501	14,622	10,800
Amortization of patents	10,412	1,946	20,931	8,318
Verdict insurance proceeds	0	(12,451)	0	(12,451)
Verdict insurance proceeds related costs	0	7,661	0	7,661
Marketing, general and administrative expenses (including non-cash stock compensation expense of $6,285 and $17,375 for the three and nine months ended September 30, 2012, respectively, and $3,568 and $9,891 for the three and nine months ended September 30, 2011, respectively)	11,914	8,748	37,548	27,031
Research, consulting and other expenses - business development	1,139	850	4,222	2,893
Total operating costs and expenses	43,303	38,175	118,710	116,255
Operating income (loss)	(8,364)	12,410	65,753	35,206
Interest and investment income	(41)	25	117	78
Income (loss) from operations before benefit from (provision for) income taxes	(8,405)	12,435	65,870	35,284
Benefit from (provision for) income taxes	1,938	(1,889)	(16,303)	(9,343)
Net income (loss) including noncontrolling interests in operating subsidiaries	(6,467)	10,546	49,567	25,941
Net (income) loss attributable to noncontrolling interests in operating subsidiaries	(152)	257	63	(646)
Net income (loss) attributable to Acacia Research Corporation	$ (6,619)	$ 10,803	$ 49,630	$ 25,295
Net income (loss) per common share attributable to Acacia Research Corporation:
Basic earnings (loss) per share	$ (0.14)	$ 0.26	$ 1.06	$ 0.65
Diluted earnings (loss) per share	$ (0.14)	$ 0.25	$ 1.04	$ 0.62
Weighted average number of shares outstanding, basic	48,332,878	41,292,819	46,886,820	39,178,952
Weighted average number of shares outstanding, diluted	48,332,878	42,857,880	47,795,819	40,733,813