Annual report pursuant to Section 13 and 15(d)

Information by Business Segment (Details 2)

v3.6.0.2
Information by Business Segment (Details 2) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of segment revenues to total revenues                      
Segment revenues from real estate operations                 $ 525,964 $ 519,068 $ 479,711
Construction contract and other service revenues                 48,364 106,402 106,748
Less: Revenues from discontinued operations                 0 (4) 14
Total revenues $ 141,991 $ 142,103 $ 145,927 $ 144,307 $ 143,325 $ 150,744 $ 170,363 $ 161,034 574,328 625,466 586,473
Reconciliation of segment property operating expenses to property operating expenses                      
Segment property operating expenses                 197,530 194,488 179,799
Less: Property operating expenses from discontinued operations                 0 6 135
Total property operating expenses                 197,530 194,494 179,934
Reconciliation of Operatiing Income from Unconsolidated Joint Ventures to Equity Method Investments [Abstract]                      
UJV NOI allocable to COPT                 (2,305) 0 0
Less: Income from UJV allocable to COPT attributable to depreciation and amortization expense and interest expense                 (993) 0 0
Add: Equity in income of unconsolidated non-real estate entities                 20 62 229
Equity in income of unconsolidated entities                 1,332 62 229
Computation of net operating income from service operations                      
Construction contract and other service revenues                 48,364 106,402 106,748
Construction contract and other service expenses                 (45,481) (102,696) (100,058)
NOI from service operations                 2,883 3,706 6,690
Reconciliation of NOI from real estate operations and NOI from service operations to (loss) income from continuing operations                      
NOI from real estate operations                 330,739 324,580 299,912
NOI from service operations                 2,883 3,706 6,690
Interest and other income                 5,444 4,517 4,923
Equity in income of unconsolidated entities                 1,332 62 229
Income tax expense                 (244) (199) (310)
Impairment losses                 (101,391) (23,289) (1,416)
General, administrative and leasing expenses                 (36,553) (31,361) (31,794)
Business development expenses and land carry costs                 (8,244) (13,507) (5,573)
Interest expense on continuing operations                 (83,163) (89,074) (92,393)
NOI from discontinued operations                 0 (10) (121)
(Loss) gain on early extinguishment of debt                 (1,110) 85,275 (9,552)
Depreciation and amortization associated with real estate operations                 (132,719) (140,025) (136,086)
(Loss) income from continuing operations $ 19,718 $ (4,829) $ (48,316) $ 8,096 $ (1,430) $ 94,279 $ 16,839 $ 10,987 $ (25,331) $ 120,675 $ 34,509