Acquisitions (Tables)

3 Months Ended

Mar. 31, 2012

Acquisitions [Abstract]

Schedule of Purchase Price Allocation

Based on the total purchase consideration and the estimate of the assets acquired and the liabilities assumed by ARG as of the Acquisition Date, the purchase price allocation was as follows (in thousands):

				Amortization Period	Annual Amortization
Assets Acquired and Liabilities Assumed:
Fair value of net tangible assets acquired	$	10,000
Intangible assets acquired - patents	150,000			10 years	15,000
Goodwill	36,202
Net deferred income tax liability	(36,202		)
Total	$	160,000

Deferred Tax Liability, Acquisition

The estimated net deferred tax liability was determined as follows (in thousands):

	Book Basis		Tax Basis		Difference
Intangible assets acquired - patents	$	150,000	$	—	$	(150,000	)
Estimated net operating loss carryforwards - ADAPTIX	—		46,565		46,565
Net deferred tax liability - pretax					(103,435		)
Estimated tax rate					35		%
Estimated net deferred tax liability					$	(36,202	)

Business Acquisition, Pro Forma Information

The unaudited pro forma combined results are presented in thousands, except share and per share information.

	Three Months Ended March 31,
	2012			2011
Revenues	$	99,040		$	61,130
Total operating costs and expenses	35,334			44,485
Operating income	63,706			16,645
Total other income	56			29
Income from operations before provision for income taxes	63,762			16,674
Provision for income taxes	(14,747		)	(7,148		)
Net income including noncontrolling interests in operating subsidiaries	49,015			9,526
Net (income) loss attributable to noncontrolling interests in operating subsidiaries	275			(1,203		)
Net income attributable to Acacia Research Corporation	$	49,290		$	8,323

	Three Months Ended March 31,
	2012		2011
Pro forma income per common share attributable to Acacia Research Corporation:
Basic earnings per share	$	1.11	$	0.24
Diluted earnings per share	$	1.08	$	0.23
Weighted average number of shares outstanding, basic	44,367,499		35,182,811
Weighted average number of shares outstanding, diluted	45,771,228		36,448,005