Annual report pursuant to Section 13 and 15(d)

Information by Business Segment (Details)

v3.6.0.2
Information by Business Segment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment financial information for real estate operations      
Revenues from real estate operations $ 525,964 $ 519,068 $ 479,711
Property operating expenses (197,530) (194,488) (179,799)
UJV NOI allocable to COPT 2,305 0 0
NOI from real estate operations 330,739 324,580 299,912
Additions to long-lived assets 70,324 335,269 64,601
Transfers from non-operating properties 184,640 307,120 141,899
Segment assets 3,780,885 3,909,312  
Defense/Information Technology Sector [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 406,210 394,283 376,742
Property operating expenses (148,705) (144,444) (137,486)
UJV NOI allocable to COPT 2,305    
NOI from real estate operations 259,810 249,839 239,256
Additions to long-lived assets 57,131 130,670 45,379
Transfers from non-operating properties 184,943 194,647 121,227
Segment assets 2,308,189 2,342,746 2,188,021
Defense/Information Technology Sector [Member] | Fort Meade/BW Corridor [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 245,354 244,274 233,764
Property operating expenses (83,684) (83,309) (80,824)
UJV NOI allocable to COPT 0    
NOI from real estate operations 161,670 160,965 152,940
Additions to long-lived assets 26,267 31,883 24,173
Transfers from non-operating properties 49,937 45,560 56,699
Segment assets 1,255,230 1,290,028 1,264,353
Defense/Information Technology Sector [Member] | Northern Virginia Defense/IT [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 48,964 49,199 48,313
Property operating expenses (17,824) (20,107) (19,071)
UJV NOI allocable to COPT 0    
NOI from real estate operations 31,140 29,092 29,242
Additions to long-lived assets 17,344 90,248 7,119
Transfers from non-operating properties 28,230 50,690 360
Segment assets 404,438 411,196 372,041
Defense/Information Technology Sector [Member] | Lackland Air Force Base [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 46,803 39,659 34,463
Property operating expenses (27,357) (22,004) (19,677)
UJV NOI allocable to COPT 0    
NOI from real estate operations 19,446 17,655 14,786
Additions to long-lived assets 0 0 0
Transfers from non-operating properties 240 32,307 0
Segment assets 131,957 134,381 102,232
Defense/Information Technology Sector [Member] | Navy Support Locations [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 28,197 28,177 31,335
Property operating expenses (12,690) (13,229) (12,576)
UJV NOI allocable to COPT 0    
NOI from real estate operations 15,507 14,948 18,759
Additions to long-lived assets 9,168 7,656 10,010
Transfers from non-operating properties 0 1,408 0
Segment assets 196,486 196,090 195,972
Defense/Information Technology Sector [Member] | Redstone Arsenal [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 13,056 11,228 10,446
Property operating expenses (4,476) (3,497) (3,066)
UJV NOI allocable to COPT 0    
NOI from real estate operations 8,580 7,731 7,380
Additions to long-lived assets 4,352 883 4,077
Transfers from non-operating properties 3,169 13,190 21,014
Segment assets 110,395 108,038 97,209
Defense/Information Technology Sector [Member] | Data Center Shells [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 23,836 21,746 18,421
Property operating expenses (2,674) (2,298) (2,272)
UJV NOI allocable to COPT 2,305    
NOI from real estate operations 23,467 19,448 16,149
Additions to long-lived assets 0 0 0
Transfers from non-operating properties 103,367 51,492 43,154
Segment assets 209,683 203,013 156,214
Regional Office [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 85,805 98,165 85,025
Property operating expenses (34,095) (36,165) (31,427)
UJV NOI allocable to COPT 0    
NOI from real estate operations 51,710 62,000 53,598
Additions to long-lived assets 12,559 204,139 19,290
Transfers from non-operating properties 82 22,313 17,942
Segment assets 442,811 608,471 526,988
Operating wholesale data centers [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 26,869 19,032 10,430
Property operating expenses (11,512) (10,402) (7,286)
UJV NOI allocable to COPT 0    
NOI from real estate operations 15,357 8,630 3,144
Additions to long-lived assets 299 132 22
Transfers from non-operating properties (377) 89,745 1,108
Segment assets 231,954 243,338 163,177
Other [Member]      
Segment financial information for real estate operations      
Revenues from real estate operations 7,080 7,588 7,514
Property operating expenses (3,218) (3,477) (3,600)
UJV NOI allocable to COPT 0    
NOI from real estate operations 3,862 4,111 3,914
Additions to long-lived assets 335 328 (90)
Transfers from non-operating properties (8) 415 1,622
Segment assets 21,293 70,914 73,309
Segment assets [Member]      
Segment financial information for real estate operations      
Segment assets $ 3,004,247 $ 3,265,469 $ 2,951,495