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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Dec. 31, 2012
Assets: |  |
Accounts receivable allowance | $ 1,465 | $ 2,848
Mortgages and notes receivable allowance | 376 | 182
Accrued straight-line rents receivable allowance | 853 | 857
Deferred financing and leasing costs, accumulated amortization | 85,548 | 76,840
Prepaid expenses and other assets, accumulated amortization | 12,561 | 12,318
Preferred Stock, Dividend Rate, Percentage | 8.625% | 8.625%
Equity: |  |
Series A Preferred Stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Series A Preferred Stock, authorized shares (in shares) | 50,000,000 | 50,000,000
Series A Preferred Stock, liquidation preference (in dollars per share) | $ 1,000 | $ 1,000
Series A Preferred Stock, shares issued (in shares) | 29,077 | 29,077
Series A Preferred Stock, shares outstanding (in shares) | 29,077 | 29,077
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) | 83,968,412 | 80,311,437
Common Stock, shares outstanding (in shares) | 83,968,412 | 80,311,437
Highwoods Realty Limited Partnership [Member] |  |
Assets: |  |
Accounts receivable allowance | 1,465 | 2,848
Mortgages and notes receivable allowance | 376 | 182
Accrued straight-line rents receivable allowance | 853 | 857
Deferred financing and leasing costs, accumulated amortization | 85,548 | 76,840
Prepaid expenses and other assets, accumulated amortization | $ 12,561 | $ 12,318
Redeemable Operating Partnership Units: [Abstract] |  |
Redeemable Common Units outstanding (in shares) | 3,660,545 | 3,733,016
Series A Preferred Units, liquidation preference (in dollars per share) | $ 1,000 | $ 1,000
Series A Preferred Units, issued (in shares) | 29,077 | 29,077
Series A Preferred Units, outstanding (in shares) | 29,077 | 29,077
Common Units: [Abstract] |  |
General partners' capital account, units outstanding (in shares) | 872,201 | 836,356
Limited partners' capital account, units outstanding (in shares) | 82,687,402 | 79,066,272

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