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Investments In and Advances To Affiliates (Details) (USD $) | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  | 3 Months Ended |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  | 3 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 SF-Harborview Plaza, LP Joint Venture [Member] | Sep. 30, 2012 Highwoods DLF 98/29, LLC Joint Venture [Member] | Mar. 31, 2012 Highwoods DLF 98/29, LLC Joint Venture [Member] property | Sep. 30, 2011 Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2011 Highwoods DLF 98/29, LLC Joint Venture [Member] | Sep. 30, 2012 Highwoods DLF 98/29, LLC Joint Venture [Member] | Sep. 30, 2011 Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2012 Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2012 Highwoods DLF 97/26 DLF 99/32, LP Joint Venture [Member] | Sep. 30, 2012 Highwoods DLF 97/26 DLF 99/32, LP Joint Venture [Member] | Sep. 30, 2012 Highwoods Realty Limited Partnership [Member] | Sep. 30, 2011 Highwoods Realty Limited Partnership [Member] | Sep. 30, 2012 Highwoods Realty Limited Partnership [Member] | Sep. 30, 2011 Highwoods Realty Limited Partnership [Member] | Sep. 30, 2012 Highwoods Realty Limited Partnership [Member] SF-Harborview Plaza, LP Joint Venture [Member] | Sep. 30, 2012 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Mar. 31, 2012 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] property | Sep. 30, 2011 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2011 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Sep. 30, 2012 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Sep. 30, 2011 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2012 Highwoods Realty Limited Partnership [Member] Highwoods DLF 98/29, LLC Joint Venture [Member] | Jun. 30, 2012 Highwoods Realty Limited Partnership [Member] Highwoods DLF 97/26 DLF 99/32, LP Joint Venture [Member]
Income Statements: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental and other revenues | $ 25,051,000 | $ 25,623,000 | $ 75,920,000 | $ 75,619,000 |  |  |  |  |  |  |  |  |  |  | $ 24,062,000 | $ 24,618,000 | $ 72,916,000 | $ 72,576,000 |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental property and other expenses | 11,624,000 | 10,805,000 | 35,706,000 | 33,576,000 |  |  |  |  |  |  |  |  |  |  | 11,024,000 | 10,239,000 | 33,901,000 | 31,765,000 |  |  |  |  |  |  |  |  |
Depreciation and amortization | 6,355,000 | 6,759,000 | 18,839,000 | 19,670,000 |  |  |  |  |  |  |  |  |  |  | 6,044,000 | 6,437,000 | 17,905,000 | 18,736,000 |  |  |  |  |  |  |  |  |
Impairments of real estate assets | 0 | 0 | 7,180,000 | 0 |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 7,180,000 | 0 |  |  |  |  |  |  |  |  |
Interest expense | 4,980,000 | 5,976,000 | 16,077,000 | 17,841,000 |  |  |  |  |  |  |  |  |  |  | 4,817,000 | 5,802,000 | 15,583,000 | 17,310,000 |  |  |  |  |  |  |  |  |
Total expenses | 22,959,000 | 23,540,000 | 77,802,000 | 71,087,000 |  |  |  |  |  |  |  |  |  |  | 21,885,000 | 22,478,000 | 74,569,000 | 67,811,000 |  |  |  |  |  |  |  |  |
Income/(loss) before disposition of properties | 2,092,000 | 2,083,000 | (1,882,000) | 4,532,000 |  |  |  |  |  |  |  |  |  |  | 2,177,000 | 2,140,000 | (1,653,000) | 4,765,000 |  |  |  |  |  |  |  |  |
Gains on disposition of properties | 0 | 0 | 6,275,000 | 0 |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 6,275,000 | 0 |  |  |  |  |  |  |  |  |
Net income | 2,092,000 | 2,083,000 | 4,393,000 | 4,532,000 |  |  |  |  |  |  |  |  |  |  | 2,177,000 | 2,140,000 | 4,622,000 | 4,765,000 |  |  |  |  |  |  |  |  |
Our share of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization of real estate assets | 2,028,000 | 2,066,000 | 5,801,000 | 6,192,000 |  |  |  |  |  |  |  |  |  |  | 1,989,000 | 2,028,000 | 5,684,000 | 6,078,000 |  |  |  |  |  |  |  |  |
Impairments of real estate assets | 0 | 0 | 1,002,000 | 0 |  |  | 1,000,000 |  |  |  |  |  |  |  | 0 | 0 | 1,002,000 | 0 |  |  | 1,000,000 |  |  |  |  |  |
Interest expense | 1,775,000 | 1,965,000 | 5,598,000 | 6,159,000 |  |  |  |  |  |  |  |  |  |  | 1,754,000 | 1,944,000 | 5,536,000 | 6,093,000 |  |  |  |  |  |  |  |  |
Net income | 914,000 | 442,000 | 1,252,000 | 2,112,000 |  |  |  |  |  |  |  |  |  |  | 925,000 | 448,000 | 1,281,000 | 2,142,000 |  |  |  |  |  |  |  |  |
Our share of net income | 914,000 | 442,000 | 1,252,000 | 2,112,000 |  |  |  |  |  |  |  |  |  |  | 925,000 | 448,000 | 1,281,000 | 2,142,000 |  |  |  |  |  |  |  |  |
Adjustments for management and other fees | 410,000 | 671,000 | 1,418,000 | 1,821,000 |  |  |  |  |  |  |  |  |  |  | 403,000 | 665,000 | 1,398,000 | 1,803,000 |  |  |  |  |  |  |  |  |
Equity in earnings of unconsolidated affiliates | 1,324,000 | 1,113,000 | 2,670,000 | 3,933,000 |  |  |  |  |  |  |  |  |  |  | 1,328,000 | 1,113,000 | 2,679,000 | 3,945,000 |  |  |  |  |  |  |  |  |
Percentage of equity interest in joint ventures, maximum | 50.00% |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  | 50.00% |  |  |  |  |  |  |  |  |  |
Advance to unconsolidated affiliate, loan amount |  |  |  |  |  |  |  |  | 38,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 38,300,000 |  |  |  |
Loan maturity date |  |  |  |  |  |  |  |  | Mar. 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  | Mar. 31, 2012 |  |  |  |
Advance to unconsolidated affiliate, interest rate basis |  |  |  |  |  |  |  |  | LIBOR plus basis points |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR plus basis points |  |  |  |
Current interest rate (in hundredths) |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Advance to unconsolidated affiliate, extended loan maturity date |  |  |  |  |  | Dec. 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 31, 2012 |  |  |  |  |  |  |
Advance to unconsolidated affiliate, amount outstanding |  |  |  |  |  |  |  |  |  |  |  | 13,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,000,000 |
Interest income from loan to unconsolidated affiliate |  |  |  |  |  | 100,000 |  | 500,000 |  | 800,000 | 800,000 |  |  |  |  |  |  |  |  | 100,000 |  | 500,000 |  | 800,000 | 800,000 |  |
Joint venture principal amount of debt |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000
Term of debt instrument (in years) |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years
Fixed interest rate (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50%
Amount of loan related to fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 39,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,100,000
Floating interest rate, interest rate basis |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR plus basis points |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR plus basis points
Current floating interest rate (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |  | 2.50%
Amount of loan related to floating interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 10,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,900,000
Impairments of real estate assets | 0 | 0 | 1,002,000 | 0 |  |  | 1,000,000 |  |  |  |  |  |  |  | 0 | 0 | 1,002,000 | 0 |  |  | 1,000,000 |  |  |  |  |  |
Number of impaired office properties |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
Consolidated Affiliates [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advance to consolidated affiliate, loan amount |  |  |  |  | $ 20,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,800,000 |  |  |  |  |  |  |  |
Term of debt instrument (in years) |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  | Sep. 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 30, 2015 |  |  |  |  |  |  |  |
Debt instrument, interest rate basis |  |  |  |  | LIBOR plus basis points |  |  |  |  |  |  |  |  |  |  |  |  |  | LIBOR plus basis points |  |  |  |  |  |  |  |
Debt instrument, interest rate basis spread (in hundredths) |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |
Debt instrument, interest rate floor (in hundredths) |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |

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- Definition Description of the interest rate for the amounts borrowed under the loan, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions), reported by an equity method investment of the entity. + References No definition available. + Details
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- Definition Date when the advance to an affiliate is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.). + References No definition available. + Details
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- Definition The percentage points added to the reference rate to compute the variable interest rate on the debt instrument, reported by an equity method investment of the entity. + References No definition available. + Details
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- Definition Interest rate stated in the contractual debt agreement, reported by an equity method investment of the entity. + References No definition available. + Details
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- Definition Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.2) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6812-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 2 -Article 6 + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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