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Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data | Sep. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Assets: |  |
Accounts receivable allowance | $ 3,581 | $ 3,595
Mortgages and notes receivable allowance | 545 | 868
Accrued straight-line rents receivable allowance | 1,366 | 2,209
Deferred financing and leasing costs, accumulated amortization | 60,950 | 59,360
Equity: |  |
Preferred Stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Preferred Stock, authorized shares (in shares) | 50,000,000 | 50,000,000
Common Stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common Stock, authorized shares (in shares) | 200,000,000 | 200,000,000
Common Stock, shares issued (in shares) | 72,579,381 | 71,690,487
Common Stock, shares outstanding (in shares) | 72,579,381 | 71,690,487
Highwoods Realty Limited Partnership [Member] |  |
Assets: |  |
Accounts receivable allowance | 3,581 | 3,595
Mortgages and notes receivable allowance | 545 | 868
Accrued straight-line rents receivable allowance | 1,366 | 2,209
Deferred financing and leasing costs, accumulated amortization | $ 60,950 | $ 59,360
Redeemable Operating Partnership Units: |  |
Redeemable Common Units, outstanding (in shares) | 3,750,679 | 3,793,987
Common Units: [Abstract] |  |
General Partner Common Units, outstanding (in shares) | 759,213 | 750,757
Limited Partner Common Units, outstanding (in shares) | 71,411,359 | 70,530,921
8.625% Series A Cumulative Redeemable Preferred Stock [Member] |  |
Equity: |  |
Preferred stock, liquidation preference (in dollars per share) | $ 1,000 | $ 1,000
Preferred stock, shares issued (in shares) | 29,077 | 29,092
Preferred stock, shares outstanding (in shares) | 29,077 | 29,092
8.000% Series B Cumulative Redeemable Preferred Stock [Member] |  |
Equity: |  |
Preferred stock, liquidation preference (in dollars per share) | $ 25 | $ 25
Preferred stock, shares issued (in shares) | 0 | 2,100,000
Preferred stock, shares outstanding (in shares) | 0 | 2,100,000
Series A Preferred Units [Member] |  |
Redeemable Operating Partnership Units: |  |
Preferred Units, liquidation preference (in dollars per share) | $ 1,000 | $ 1,000
Preferred Units, issued (in shares) | 29,077 | 29,092
Preferred Units, outstanding (in shares) | 29,077 | 29,092
Series B Preferred Units [Member] |  |
Redeemable Operating Partnership Units: |  |
Preferred Units, liquidation preference (in dollars per share) | $ 25 | $ 25
Preferred Units, issued (in shares) | 0 | 2,100,000
Preferred Units, outstanding (in shares) | 0 | 2,100,000

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