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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 133,403 | $ 126,685
Short-term investments | 95,590 | 130,017
Accounts receivable | 13,540 | 6,341
Deferred income tax | 3,139 | 3,139
Prepaid expenses and other current assets | 7,617 | 7,546
Total current assets | 253,289 | 273,728
Property and equipment, net of accumulated depreciation and amortization | 782 | 766
Patents, net of accumulated amortization | 290,197 | 288,432
Goodwill | 30,149 | 30,149
Other assets | 309 | 318
Total assets | 574,726 | 593,393
Current liabilities: |  |
Accounts payable and accrued expenses | 12,295 | 11,555
Accrued patent investment costs | 19,250 | 4,000
Royalties and contingent legal fees payable | 3,895 | 10,447
Total current liabilities | 35,440 | 26,002
Deferred income taxes | 3,747 | 4,874
Other liabilities | 319 | 319
Total liabilities | 39,506 | 31,195
Commitments and contingencies (Note 5) |  |
Stockholders' equity: |  |
Preferred stock, par value $0.001 per share; 10,000,000 shares authorized; no shares issued or outstanding | 0 | 0
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 50,041,123 and 49,385,057 shares issued and outstanding as of March 31, 2014 and December 31, 2013, respectively | 50 | 49
Treasury stock, at cost, 1,729,408 shares as of March 31, 2014 and December 31, 2013 | (34,640) | (34,640)
Additional paid-in capital | 650,934 | 653,314
Accumulated comprehensive loss | (976) | (947)
Accumulated deficit | (86,487) | (62,066)
Total Acacia Research Corporation stockholders' equity | 528,881 | 555,710
Noncontrolling interests in operating subsidiaries | 6,339 | 6,488
Total stockholders' equity | 535,220 | 562,198
Total liabilities and stockholders' equity | $ 574,726 | $ 593,393

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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.31(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph g -Article 7 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568447-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4590271-111686 + Details
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