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Real Estate Assets Real Estate Assets (Tables) - Pro Forma 2015 Acquisitions [Member] | 9 Months Ended
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Sep. 30, 2015
Business Acquisition [Line Items] |
Schedule of Business Acquisitions, Purchase Price Allocation [Table Text Block] | The following table sets forth a summary of the fair value of the major assets acquired and liabilities assumed relating to the above-referenced acquisition of two buildings in Atlanta, GA during the third quarter of 2015:
| Total Purchase Price Allocation
Real estate assets | $ | 275,639 |
Acquisition-related intangible assets (in deferred financing and leasing costs) | 23,722 |
Acquisition-related below market lease liabilities (in accounts payable, accrued expenses and other liabilities) | (9,076 | )
Total allocation | $ | 290,285 |
Highwoods Properties, Inc. [Member] |
Business Acquisition [Line Items] |
Schedule of Business Acquisitions, Pro Forma [Table Text Block] | The following table sets forth the Company's revenues and net income, adjusted for interest expense, straight-line rental income, depreciation and amortization related to purchase price allocations and acquisition costs, assuming the above-referenced acquisition of two buildings in Atlanta, GA during the third quarter of 2015 had been completed as of January 1, 2013:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Pro forma revenues | $ | 171,247 |  |  | $ | 159,944 |  |  | $ | 505,107 |  |  | $ | 477,120 |
Pro forma net income | $ | 33,354 |  |  | $ | 54,176 |  |  | $ | 80,647 |  |  | $ | 92,019 |
Pro forma net income available for common stockholders | $ | 31,486 |  |  | $ | 51,585 |  |  | $ | 75,524 |  |  | $ | 86,173 |
Pro forma earnings per share - basic | $ | 0.33 |  |  | $ | 0.57 |  |  | $ | 0.80 |  |  | $ | 0.95 |
Pro forma earnings per share - diluted | $ | 0.33 |  |  | $ | 0.57 |  |  | $ | 0.80 |  |  | $ | 0.95 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1486-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
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