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Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Revenues | $ 37,192 | $ 15,520 | $ 99,846 | $ 115,491
Cost of revenues: |  |  |  |
Inventor royalties | 4,667 | 2,353 | 16,312 | 26,444
Contingent legal fees | 7,663 | 2,547 | 16,267 | 21,603
Litigation and licensing expenses - patents | 9,592 | 10,870 | 29,406 | 30,436
Amortization of patents | 13,511 | 12,615 | 43,515 | 36,923
Marketing, general and administrative expenses (including non-cash stock compensation expense of $3,954 and $14,022 for the three and nine months ended September 30, 2014, respectively, and $9,386 and $20,812 for the three and nine months ended September 30, 2013, respectively) | 11,636 | 18,235 | 36,510 | 45,270
Research, consulting and other expenses - business development | 1,208 | 730 | 3,203 | 2,480
Other expenses | 1,548 | 3,506 | 1,548 | 3,506
Total operating costs and expenses | 49,825 | 50,856 | 146,761 | 166,662
Operating loss | (12,633) | (35,336) | (46,915) | (51,171)
Interest income | 293 | 554 | 1,218 | 1,393
Net realized gain (loss) on investments | (350) | (274) | (1,362) | 577
Total other income (expense) | (57) | 280 | (144) | 1,970
Loss before (provision for) benefit from income taxes | (12,690) | (35,056) | (47,059) | (49,201)
(Provision for) benefit from income taxes | (145) | 19,570 | (3,462) | 25,348
Net loss including noncontrolling interests in operating subsidiaries | (12,835) | (15,486) | (50,521) | (23,853)
Net (income) loss attributable to noncontrolling interests in operating subsidiaries | 420 | (225) | 736 | 752
Net loss attributable to Acacia Research Corporation | (12,415) | (15,711) | (49,785) | (23,101)
Net loss available to common stockholders, basic | (12,575) | (15,904) | (50,356) | (23,458)
Net loss available to common stockholders, diluted | $ (12,575) | $ (15,904) | $ (50,356) | $ (23,458)
Basic loss per common share | $ (0.26) | $ (0.33) | $ (1.04) | $ (0.49)
Diluted loss per common share | $ (0.26) | $ (0.33) | $ (1.04) | $ (0.49)
Weighted average number of shares outstanding, basic | 48,806,334 | 48,330,149 | 48,561,428 | 48,068,038
Weighted average number of shares outstanding, diluted | 48,806,334 | 48,330,149 | 48,561,428 | 48,068,038
Common Stock, Dividends, Per Share, Cash Paid | $ 0.125 | $ 0.125 | $ 0.375 | $ 0.250

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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