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Information by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | $ 133,924 | $ 128,195 | $ 267,011 | $ 250,905 |
Property operating expenses | 48,141 | 46,407 | 100,016 | 97,093 |
NOI from real estate operations | 85,783 | 81,788 | 166,995 | 153,812 |
Segment assets | 3,841,692 | 3,904,059 | 3,841,692 | 3,904,059 | $ 3,909,312
Segment assets |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 133,924 | 128,195 | 267,011 | 250,905 |
Property operating expenses | 48,141 | 46,407 | 100,016 | 97,093 |
NOI from real estate operations | 85,783 | 81,788 | 166,995 | 153,812 |
Additions to long-lived assets | 15,022 | 94,715 | 29,423 | 166,686 |
Transfers from non-operating properties | 58,348 | 44,624 | 120,441 | 161,896 |
Segment assets | 3,289,117 | 3,218,657 | 3,289,117 | 3,218,657 |
Segment assets | Defense/Information Technology Locations |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 102,097 | 98,093 | 203,327 | 193,813 |
Property operating expenses | 35,990 | 34,960 | 74,509 | 73,777 |
NOI from real estate operations | 66,107 | 63,133 | 128,818 | 120,036 |
Additions to long-lived assets | 12,689 | 91,031 | 24,174 | 96,939 |
Transfers from non-operating properties | 58,804 | 24,192 | 120,775 | 129,780 |
Segment assets | 2,421,850 | 2,372,807 | 2,421,850 | 2,372,807 |
Segment assets | Defense/Information Technology Locations | Fort Meade/BW Corridor |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 60,912 | 60,007 | 123,421 | 121,191 |
Property operating expenses | 20,378 | 19,480 | 43,624 | 42,996 |
NOI from real estate operations | 40,534 | 40,527 | 79,797 | 78,195 |
Additions to long-lived assets | 7,096 | 5,141 | 13,615 | 8,586 |
Transfers from non-operating properties | 768 | 6,098 | 36,519 | 19,028 |
Segment assets | 1,305,769 | 1,266,632 | 1,305,769 | 1,266,632 |
Segment assets | Defense/Information Technology Locations | Northern Virginia Defense/IT |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 12,057 | 13,462 | 24,173 | 24,508 |
Property operating expenses | 4,307 | 5,354 | 8,848 | 10,970 |
NOI from real estate operations | 7,750 | 8,108 | 15,325 | 13,538 |
Additions to long-lived assets | 3,059 | 83,913 | 6,137 | 84,700 |
Transfers from non-operating properties | 27,944 | 7,735 | 27,850 | 51,208 |
Segment assets | 424,441 | 499,601 | 424,441 | 499,601 |
Segment assets | Defense/Information Technology Locations | Lackland Air Force Base |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 11,651 | 9,743 | 21,876 | 18,408 |
Property operating expenses | 6,844 | 5,349 | 12,264 | 10,112 |
NOI from real estate operations | 4,807 | 4,394 | 9,612 | 8,296 |
Additions to long-lived assets | 0 | 0 | 0 | 0 |
Transfers from non-operating properties | 231 | 468 | 237 | 31,559 |
Segment assets | 133,359 | 134,127 | 133,359 | 134,127 |
Segment assets | Defense/Information Technology Locations | Navy Support Locations |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 6,998 | 7,186 | 13,932 | 14,451 |
Property operating expenses | 2,675 | 3,390 | 6,199 | 6,788 |
NOI from real estate operations | 4,323 | 3,796 | 7,733 | 7,663 |
Additions to long-lived assets | 2,233 | 1,769 | 3,503 | 3,362 |
Transfers from non-operating properties | 0 | 0 | 0 | 0 |
Segment assets | 195,195 | 194,764 | 195,195 | 194,764 |
Segment assets | Defense/Information Technology Locations | Redstone Arsenal |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 3,191 | 2,658 | 6,307 | 5,104 |
Property operating expenses | 960 | 888 | 1,938 | 1,717 |
NOI from real estate operations | 2,231 | 1,770 | 4,369 | 3,387 |
Additions to long-lived assets | 301 | 208 | 919 | 291 |
Transfers from non-operating properties | 4 | 8,980 | 215 | 11,977 |
Segment assets | 106,810 | 107,677 | 106,810 | 107,677 |
Segment assets | Defense/Information Technology Locations | Data Center Shells |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 7,288 | 5,037 | 13,618 | 10,151 |
Property operating expenses | 826 | 499 | 1,636 | 1,194 |
NOI from real estate operations | 6,462 | 4,538 | 11,982 | 8,957 |
Additions to long-lived assets | 0 | 0 | 0 | 0 |
Transfers from non-operating properties | 29,857 | 911 | 55,954 | 16,008 |
Segment assets | 256,276 | 170,006 | 256,276 | 170,006 |
Segment assets | Regional Office |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 23,283 | 24,400 | 46,785 | 46,360 |
Property operating expenses | 8,721 | 8,406 | 18,552 | 17,154 |
NOI from real estate operations | 14,562 | 15,994 | 28,233 | 29,206 |
Additions to long-lived assets | 2,180 | 3,396 | 4,939 | 69,330 |
Transfers from non-operating properties | 26 | 5,218 | 108 | 16,725 |
Segment assets | 594,750 | 598,030 | 594,750 | 598,030 |
Segment assets | Wholesale data centers |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 6,804 | 3,820 | 13,297 | 6,855 |
Property operating expenses | 2,651 | 2,221 | 5,312 | 4,433 |
NOI from real estate operations | 4,153 | 1,599 | 7,985 | 2,422 |
Additions to long-lived assets | 0 | 78 | 0 | 108 |
Transfers from non-operating properties | (482) | 15,202 | (431) | 15,379 |
Segment assets | 237,226 | 175,563 | 237,226 | 175,563 |
Segment assets | Other Segments |  |  |  |  |
Segment financial information for real estate operations |  |  |  |  |
Revenues from real estate operations | 1,740 | 1,882 | 3,602 | 3,877 |
Property operating expenses | 779 | 820 | 1,643 | 1,729 |
NOI from real estate operations | 961 | 1,062 | 1,959 | 2,148 |
Additions to long-lived assets | 153 | 210 | 310 | 309 |
Transfers from non-operating properties | 0 | 12 | (11) | 12 |
Segment assets | $ 35,291 | $ 72,257 | $ 35,291 | $ 72,257 |

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