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Information by Business Segment (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Reconciliation of segment revenues to total revenues |  |
Segment revenues from real estate operations | $ 122,077 | $ 125,304
Construction contract and other service revenues | 14,262 | 21,534
Less: Revenues from discontinued operations (Note 14) | (5,342) | (14,643)
Total revenues | 130,997 | 132,195
Reconciliation of segment property operating expenses to property operating expenses |  |
Segment property operating expenses | 44,066 | 46,546
Less: Property operating expenses from discontinued operations (Note 14) | (1,491) | (5,293)
Property operating expenses | 42,575 | 41,253
Computation of net operating income from service operations |  |
Construction contract and other service revenues | 14,262 | 21,534
Construction contract and other service expenses | (13,477) | (20,607)
NOI from service operations | 785 | 927
Reconciliation of NOI from real estate operations and NOI from service operations to (loss) income from continuing operations |  |
NOI from real estate operations | 78,011 | 78,758
NOI from service operations | 785 | 927
Interest and other income | 946 | 1,217
Equity in income (loss) of unconsolidated entities | 41 | (89)
Income tax expense | (16) | (204)
Other adjustments: |  |
Depreciation and amortization associated with real estate operations | (28,252) | (27,834)
Impairment (losses) recoveries | (1,857) | 4,836
General, administrative and leasing expenses | (7,820) | (9,569)
Business development expenses and land carry costs | (1,359) | (1,576)
Interest expense on continuing operations | (22,307) | (24,431)
NOI from discontinued operations | (3,851) | (9,350)
Loss on early extinguishment of debt | (5,184) | 0
Income from continuing operations | $ 9,137 | $ 12,685

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- Definition Costs incurred for business development, which involves the development of products and services, their delivery, design and their implementation. Business development includes a number of techniques designed to grow an economic enterprise. It includes the non capitalized cost of evaluating and executing acquisitions. It also includes expenses incurred in connection with properties not in operations. + References No definition available. + Details
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- Definition The current period expense charged against earnings on long-lived, physical real estate operations assets, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset or deferred costs associated with real estate operations over the benefit period of such asset or costs; or to reflect consumption during the period of an asset that is not used in production. + References No definition available. + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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