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Earnings Per Share - Computation of Company's Earnings Per Share (EPS) and Reconciliation of Net Income (Loss) from Continuing Operations and Number of Common Shares Used in Computations of "Basic" EPS and "Diluted" EPS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Continuing Operations: |  |  |  |
Income (loss) from continuing operations | $ 7,780 | $ 68,078 | $ (260,228) | $ 47,777
Plus: Gain on disposition of real estate | 11,267 | 1,472 | 36,361 | 383
Plus: Income attributable to non-controlling interests | (449) | (347) | (1,322) | (501)
Less: Write-off of preferred share original issuance costs | 0 | (1,943) | 0 | (1,943)
Less: Preferred dividends | (5,594) | (6,259) | (11,188) | (12,867)
Less: Earnings attributable to unvested shares and operating partnership units | (420) | (464) | (868) | (777)
Income (loss) from continuing operations | 12,584 | 60,537 | (237,245) | 32,072
Discontinued operations: |  |  |  |
Income from discontinued operations | 0 | 7,345 | 0 | 10,357
Plus: (Income) loss attributable to non-controlling interests | 0 | (531) | 0 | 1,361
Net income (loss) attributable to common shareholders after allocation to participating securities | $ 12,584 | $ 67,351 | $ (237,245) | $ 43,790
Denominators – Number of Shares |  |  |  |
Basic—Average shares outstanding | 360,073 | 357,812 | 359,914 | 357,717
Effect of dilutive securities: |  |  |  |
Senior convertible notes | 3,631 | 0 | 0 | 0
Stock options | 443 | 483 | 0 | 459
Diluted—Average shares outstanding | 364,147 | 358,295 | 359,914 | 358,176
Basic Earnings Per Share: |  |  |  |
Income (loss) from continuing operations attributable to common shareholders | $ 0.03 | $ 0.17 | $ (0.66) | $ 0.09
Income from discontinued operations attributable to common shareholders | 0 | 0.02 | 0 | 0.03
Net income (loss) attributable to common shareholders | 0.03 | 0.19 | (0.66) | 0.12
Diluted Earnings Per Share: |  |  |  |
Income (loss) from continuing operations attributable to common shareholders | 0.03 | 0.17 | (0.66) | 0.09
Income from discontinued operations attributable to common shareholders | 0 | 0.02 | 0 | 0.03
Net income (loss) attributable to common shareholders | $ 0.03 | $ 0.19 | $ (0.66) | $ 0.12

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting 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 -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 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.23) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 + Details
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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4613673-111683 + Details
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