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Earnings Per Share/Unit (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations | $ 19,328 | $ 16,608 | $ 15,487 | $ 11,300 | $ 13,225 | $ 9,617 | $ 8,756 | $ 8,715 | $ 62,723 |  | $ 40,313 |  | $ 30,885 |
Net (income) attributable to noncontrolling interests in the Operating Partnership from continuing operations |  |  |  |  |  |  |  |  | (2,185) |  | (1,767) |  | (1,239) |
Net (income) attributable to noncontrolling interests in consolidated affiliates | (356) | (203) | (187) | (203) | (220) | (159) | (223) | (184) | (949) |  | (786) |  | (755) |
Dividends on Preferred Stock | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (2,508) |  | (2,508) |  | (4,553) |
Excess of Preferred Stock redemption/repurchase cost over carrying value |  |  |  |  |  |  |  |  | 0 |  | 0 |  | (1,895) |
Income from continuing operations available for common stockholders |  |  |  |  |  |  |  |  | 57,081 |  | 35,252 |  | 22,443 |
Income from discontinued operations | 12,362 | 39,460 | 14,092 | 2,460 | 2,384 | 26,179 | 5,742 | 9,617 | 68,374 |  | 43,922 |  | 17,086 |
Net (income) attributable to noncontrolling interests in the Operating Partnership from discontinued operations |  |  |  |  |  |  |  |  | (2,506) |  | (2,087) |  | (852) |
Income from discontinued operations available for common stockholders |  |  |  |  |  |  |  |  | 65,868 |  | 41,835 |  | 16,234 |
Net income available for common stockholders | 29,729 | 53,349 | 27,522 | 12,349 | 14,074 | 33,357 | 12,962 | 16,694 | 122,949 |  | 77,087 |  | 38,677 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per Common Share - weighted average shares (in shares) |  |  |  |  |  |  |  |  | 85,335,000 | [1],[2] | 75,811,000 | [1],[2] | 72,281,000 | [1],[2]
Earnings per Common Share - basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations available for common stockholders (in dollars per share) | $ 0.20 | $ 0.17 | $ 0.17 | $ 0.12 | $ 0.15 | $ 0.11 | $ 0.10 | $ 0.10 | $ 0.67 |  | $ 0.47 |  | $ 0.31 |
Income from discontinued operations available for common stockholders (in dollars per share) | $ 0.13 | $ 0.44 | $ 0.16 | $ 0.03 | $ 0.03 | $ 0.33 | $ 0.07 | $ 0.13 | $ 0.77 |  | $ 0.55 |  | $ 0.23 |
Net income available for common stockholders (in dollars per share) | $ 0.33 | $ 0.61 | $ 0.33 | $ 0.15 | $ 0.18 | $ 0.44 | $ 0.17 | $ 0.23 | $ 1.44 |  | $ 1.02 |  | $ 0.54 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations | 19,328 | 16,608 | 15,487 | 11,300 | 13,225 | 9,617 | 8,756 | 8,715 | 62,723 |  | 40,313 |  | 30,885 |
Net (income) attributable to noncontrolling interests in consolidated affiliates | (356) | (203) | (187) | (203) | (220) | (159) | (223) | (184) | (949) |  | (786) |  | (755) |
Dividends on Preferred Stock | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (2,508) |  | (2,508) |  | (4,553) |
Excess of Preferred Stock redemption/repurchase cost over carrying value |  |  |  |  |  |  |  |  | 0 |  | 0 |  | (1,895) |
Income from continuing operations available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership |  |  |  |  |  |  |  |  | 59,266 |  | 37,019 |  | 23,682 |
Income from discontinued operations | 12,362 | 39,460 | 14,092 | 2,460 | 2,384 | 26,179 | 5,742 | 9,617 | 68,374 |  | 43,922 |  | 17,086 |
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership |  |  |  |  |  |  |  |  | 127,640 |  | 80,941 |  | 40,768 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per Common Share - weighted average shares (in shares) |  |  |  |  |  |  |  |  | 85,335,000 | [1],[2] | 75,811,000 | [1],[2] | 72,281,000 | [1],[2]
Stock options using the treasury method |  |  |  |  |  |  |  |  | 114,000 |  | 122,000 |  | 136,000 |
Noncontrolling interests Common Units |  |  |  |  |  |  |  |  | 3,387,000 |  | 3,745,000 |  | 3,772,000 |
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares) (1) |  |  |  |  |  |  |  |  | 88,836,000 | [1] | 79,678,000 | [1] | 76,189,000 | [1]
Earnings per Common Share - diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations available for common stockholders (in dollars per share) | $ 0.20 | $ 0.17 | $ 0.17 | $ 0.12 | $ 0.15 | $ 0.11 | $ 0.10 | $ 0.10 | $ 0.67 |  | $ 0.47 |  | $ 0.31 |
Income from discontinued operations available for common stockholders (in dollars per share) | $ 0.13 | $ 0.44 | $ 0.16 | $ 0.03 | $ 0.03 | $ 0.32 | $ 0.07 | $ 0.13 | $ 0.77 |  | $ 0.55 |  | $ 0.23 |
Net income available for common stockholders (in dollars per share) | $ 0.33 | $ 0.61 | $ 0.33 | $ 0.15 | $ 0.18 | $ 0.43 | $ 0.17 | $ 0.23 | $ 1.44 |  | $ 1.02 |  | $ 0.54 |
Earnings per Common Unit - diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of anti-dilutive options and warrants not included in earnings per share (in dollars per share) |  |  |  |  |  |  |  |  | 300,000 |  | 500,000 |  | 400,000 |
Highwoods Realty Limited Partnership [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations | 19,328 | 16,607 | 15,490 | 11,247 | 13,276 | 9,621 | 8,759 | 8,717 | 62,672 |  | 40,373 |  | 30,946 |
Net (income) attributable to noncontrolling interests in consolidated affiliates | (356) | (203) | (187) | (203) | (220) | (159) | (223) | (184) | (949) |  | (786) |  | (755) |
Distributions on Preferred Units | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (2,508) |  | (2,508) |  | (4,553) |
Excess of Preferred Unit redemption/repurchase cost over carrying value |  |  |  |  |  |  |  |  | 0 |  | 0 |  | (1,895) |
Income from continuing operations available for common unitholders |  |  |  |  |  |  |  |  | 59,215 |  | 37,079 |  | 23,743 |
Income from discontinued operations available for common unitholders | 12,362 | 39,460 | 14,092 | 2,460 | 2,384 | 26,179 | 5,742 | 9,617 | 68,374 |  | 43,922 |  | 17,086 |
Net income available for common unitholders | 30,707 | 55,237 | 28,768 | 12,877 | 14,813 | 35,014 | 13,651 | 17,523 | 127,589 |  | 81,001 |  | 40,829 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per Common Unit - weighted average units (in shares) |  |  |  |  |  |  |  |  | 88,313,000 |  | 79,147,000 |  | 75,644,000 |
Earnings per Common Unit - basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations available for common unitholders (in dollars per share) | $ 0.20 | $ 0.17 | $ 0.17 | $ 0.12 | $ 0.15 | $ 0.11 | $ 0.11 | $ 0.10 | $ 0.67 |  | $ 0.47 |  | $ 0.31 |
Income from discontinued operations available for common unitholders (in dollars per share) | $ 0.13 | $ 0.44 | $ 0.16 | $ 0.03 | $ 0.03 | $ 0.33 | $ 0.07 | $ 0.13 | $ 0.77 |  | $ 0.55 |  | $ 0.23 |
Net income available for common unitholders (in dollars per share) | $ 0.33 | $ 0.61 | $ 0.33 | $ 0.15 | $ 0.18 | $ 0.44 | $ 0.18 | $ 0.23 | $ 1.44 |  | $ 1.02 |  | $ 0.54 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations | 19,328 | 16,607 | 15,490 | 11,247 | 13,276 | 9,621 | 8,759 | 8,717 | 62,672 |  | 40,373 |  | 30,946 |
Net (income) attributable to noncontrolling interests in consolidated affiliates | (356) | (203) | (187) | (203) | (220) | (159) | (223) | (184) | (949) |  | (786) |  | (755) |
Distributions on Preferred Units | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (627) | (2,508) |  | (2,508) |  | (4,553) |
Excess of Preferred Unit redemption/repurchase cost over carrying value |  |  |  |  |  |  |  |  | 0 |  | 0 |  | (1,895) |
Income from continuing operations available for common unitholders |  |  |  |  |  |  |  |  | 59,215 |  | 37,079 |  | 23,743 |
Income from discontinued operations available for common unitholders | 12,362 | 39,460 | 14,092 | 2,460 | 2,384 | 26,179 | 5,742 | 9,617 | 68,374 |  | 43,922 |  | 17,086 |
Net income available for common unitholders | $ 30,707 | $ 55,237 | $ 28,768 | $ 12,877 | $ 14,813 | $ 35,014 | $ 13,651 | $ 17,523 | $ 127,589 |  | $ 81,001 |  | $ 40,829 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per Common Unit - weighted average units (in shares) |  |  |  |  |  |  |  |  | 88,313,000 |  | 79,147,000 |  | 75,644,000 |
Stock options using the treasury method |  |  |  |  |  |  |  |  | 114,000 |  | 122,000 |  | 136,000 |
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares) |  |  |  |  |  |  |  |  | 88,427,000 |  | 79,269,000 |  | 75,780,000 |
Earnings per Common Unit - diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations available for common unitholders (in dollars per share) | $ 0.20 | $ 0.17 | $ 0.17 | $ 0.12 | $ 0.15 | $ 0.11 | $ 0.10 | $ 0.10 | $ 0.67 |  | $ 0.47 |  | $ 0.31 |
Income from discontinued operations available for common unitholders (in dollars per share) | $ 0.13 | $ 0.44 | $ 0.16 | $ 0.03 | $ 0.03 | $ 0.33 | $ 0.07 | $ 0.13 | $ 0.77 |  | $ 0.55 |  | $ 0.23 |
Net income available for common unitholders (in dollars per share) | $ 0.33 | $ 0.61 | $ 0.33 | $ 0.15 | $ 0.18 | $ 0.44 | $ 0.17 | $ 0.23 | $ 1.44 |  | $ 1.02 |  | $ 0.54 |
Number of anti-dilutive options and warrants not included in earnings per share (in dollars per share) |  |  |  |  |  |  |  |  | 300,000 |  | 500,000 |  | 400,000 |
[1] | There were 0.3 million, 0.5 million and 0.4 million options outstanding during the years ended December 31, 2013, 2012 and 2011, respectively, that were not included in the computation of diluted earnings per share because the impact of including such options would be anti-dilutive.
[2] | Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable.

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- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units 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 -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 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 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 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 6: 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 a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.12) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.14) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 5 + Details
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- Definition This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items, which is apportioned to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This item includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 2: 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 + Details
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- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 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 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 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 7: 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 Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. + 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 260 -SubTopic 10 -Section 45 -Paragraph 28A -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1500-109256 + Details
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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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- Definition Per unit of ownership amount after tax of income (loss) available to limited partnership (LP) unit-holder and units that would have been outstanding assuming the issuance of limited partner units for dilutive potential units outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
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- Definition Amount after tax of income (loss) attributable to nonredeemable noncontrolling partner of a limited partnership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.19) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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