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Information by Business Segment (Details 2) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Reconciliation of segment revenues to total revenues |  |
Segment revenues from real estate operations | $ 126,767 | $ 133,087
Construction contract and other service revenues | 13,034 | 11,220
Total revenues | 139,801 | 144,307
Reconciliation of UJV NOI allocable to COPT to Equity Income in Unconsolidated Entities |  |
UJV NOI allocable to COPT | 1,298 | 0
Less: Income from UJV allocable to COPT attributable to depreciation and amortization expense and interest expense | (572) | 0
Add: Equity in (loss) income of unconsolidated non-real estate entities | (1) | 10
Equity in income of unconsolidated entities | 725 | 10
Computation of net operating income from service operations |  |
Construction contract and other service revenues | 13,034 | 11,220
Construction contract and other service expenses | (12,486) | (10,694)
NOI from service operations | $ 548 | $ 526

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- Definition The aggregate costs related to construction and development services and the aggregate costs related to other service operations during the reporting period + References No definition available. + Details
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- Definition Income (Loss) from Equity Method Investments Allocable to Depreciation, Amortization and Interest Expense + References No definition available. + Details
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- Definition Represents the computation of NOI from service operations, which is the difference between Construction contract and other service revenues and Construction contract and other service expenses. + References No definition available. + Details
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- Definition Reconciliation of Operating Income from Unconsolidated Joint Ventures to Equity Method Investments [Abstract] + References No definition available. + Details
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- Definition Amount of revenue earned from products sold or services provided under the terms of a contract, including, but not limited to, government contracts and construction contracts, classified as other. + 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 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + 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=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: 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=66902209&loc=d3e3602-108585 Reference 4: 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=66022249&loc=d3e33749-111570 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition The aggregate revenue from real estate operations during the reporting period. + 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 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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