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Properties, Net (Tables) | 9 Months Ended
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Sep. 30, 2018
Real Estate [Abstract] |
Schedule of operating properties, net | Operating properties, net consisted of the following (in thousands):
| September 30, 2018 |  | December 31, 2017
Land | $ | 481,527 |  |  | $ | 455,680 |
Buildings and improvements | 3,182,709 |  |  | 3,068,124 |
Less: Accumulated depreciation | (867,659 | ) |  | (786,193 | )
Operating properties, net | $ | 2,796,577 |  |  | $ | 2,737,611 |
Schedule of projects in development or held for future development | Projects in development or held for future development consisted of the following (in thousands):
| September 30, 2018 |  | December 31, 2017
Land | $ | 220,468 |  |  | $ | 240,825 |
Development in progress, excluding land | 190,382 |  |  | 162,669 |
Projects in development or held for future development | $ | 410,850 |  |  | $ | 403,494 |
Components of assets held for sale | The table below sets forth the components of this property’s assets as of September 30, 2018 and December 31, 2017 (in thousands):
Properties, net | $ | 38,670 |
Deferred rent receivable | 3,237 |
Deferred leasing costs, net | 319 |
Assets held for sale, net | $ | 42,226 |

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- Definition Tabular disclosure of properties in development or held for future development, which includes amount of land and costs incurred for construction and development. + References No definition available. + Details
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- Definition Tabular disclosure of long lived assets held for sale. Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets held for sale, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230 + Details
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