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Acquisition (Tables) | 12 Months Ended
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Dec. 31, 2012
Acquisition [Abstract] |
Schedule of Purchase Price Allocation | The total consideration paid by ARG in connection with the Merger was approximately $160 million, in cash. Based on the total purchase consideration and the estimate of the assets acquired and the liabilities assumed by ARG as of the Acquisition Date, the purchase price allocation was as follows ($ amounts 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 |  | 30,149 |  |  |  |  |
Net deferred income tax liability |  | (30,149 | ) |  |  |  |
Total |  | $ | 160,000 |  |  |  |  |
Deferred Tax Liability, Acquisition | The estimated net deferred tax liability was determined as follows ($ amounts in thousands):
|  | Book Basis |  | Tax Basis |  | Difference
Intangible assets acquired - patents |  | $ | 150,000 |  |  | $ | — |  |  | $ | (150,000 | )
Estimated acquired deferred tax assets (including net operating loss carryforwards) - ADAPTIX |  | — |  |  | 63,860 |  |  | 63,860 |
Net deferred tax liability - pretax |  |  |  |  |  | (86,140 | )
Estimated tax rate |  |  |  |  |  | 35 | %
Estimated net deferred tax liability |  |  |  |  |  | $ | (30,149 | )
Business Acquisition, Pro Forma Information | The unaudited pro forma combined results are presented in thousands, except share and per share information.
| 2012 |  | 2011
Revenues | $ | 250,727 |  |  | $ | 172,256 |
Total operating costs and expenses | 170,953 |  |  | 159,674 |
Operating income | 79,774 |  |  | 12,582 |
Interest and investment income | 937 |  |  | 96 |
Income from operations before provision for income taxes | 80,711 |  |  | 12,678 |
Provision for income taxes | (22,060 | ) |  | (8,708 | )
Net income including noncontrolling interests in operating subsidiaries | 58,651 |  |  | 3,970 |
Net loss (income) attributable to noncontrolling interests in operating subsidiaries | 164 |  |  | (539 | )
Net income attributable to Acacia Research Corporation | $ | 58,815 |  |  | $ | 3,431 |
| 2012 |  | 2011
Pro forma income per common share attributable to Acacia Research Corporation: |  |  |  |  |
Basic earnings per share | $ | 1.24 |  |  | $ | 0.09 |
Diluted earnings per share | $ | 1.22 |  |  | $ | 0.08 |
Weighted average number of shares outstanding, basic | 47,251,061 |  |  | 39,743,433 |
Weighted average number of shares outstanding, diluted | 48,060,647 |  |  | 41,258,297 |

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