v2.4.0.8

Segment Information (Schedule Of Segment Reporting By Geographic Area And Property Type) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Class A Office | $ 577,731 | $ 534,483 | $ 1,666,335 | $ 1,450,540
Rental Revenue: Office/Technical | 15,661 | 15,378 | 47,283 | 40,121
Rental Revenue: Residential | 7,018 | 5,493 | 18,998 | 16,555
Rental Revenue: Hotel | 11,918 | 10,652 | 32,478 | 30,061
Total revenue | 612,328 | 566,006 | 1,765,094 | 1,537,277
Rental Revenue: % of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Rental Expenses: Class A Office | 206,743 | 192,267 | 599,806 | 525,187
Rental Expenses: Office/Technical | 4,273 | 4,114 | 12,546 | 10,711
Rental Expenses: Residential | 4,163 | 2,907 | 11,861 | 8,470
Rental Expenses: Hotel | 7,585 | 6,580 | 21,697 | 20,959
Rental Expenses: Total | 222,764 | 205,868 | 645,910 | 565,327
Rental Expenses: % Of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Net operating Income | 389,564 | 360,138 | 1,119,184 | 971,950
Net operating Income: % of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Class A Office | 176,788 | 170,415 | 520,857 | 495,376
Rental Revenue: Office/Technical | 6,056 | 5,662 | 17,788 | 16,853
Rental Revenue: Residential | 1,137 | 1,125 | 3,389 | 3,257
Rental Revenue: Hotel | 11,918 | 10,652 | 32,478 | 30,061
Total revenue | 195,899 | 187,854 | 574,512 | 545,547
Rental Revenue: % of Grand Totals | 31.99% | 33.19% | 32.55% | 35.49%
Rental Expenses: Class A Office | 69,026 | 67,228 | 206,242 | 195,206
Rental Expenses: Office/Technical | 1,901 | 1,763 | 5,326 | 5,177
Rental Expenses: Residential | 509 | 466 | 1,501 | 1,316
Rental Expenses: Hotel | 7,585 | 6,580 | 21,697 | 20,959
Rental Expenses: Total | 79,021 | 76,037 | 234,766 | 222,658
Rental Expenses: % Of Grand Totals | 35.47% | 36.94% | 36.35% | 39.38%
Net operating Income | 116,878 | 111,817 | 339,746 | 322,889
Net operating Income: % of Grand Totals | 30.00% | 31.05% | 30.36% | 33.22%
New York |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Class A Office | 243,033 | 214,086 | 684,240 | 510,767
Rental Revenue: Office/Technical | 0 | 0 | 0 | 0
Rental Revenue: Residential | 0 | 0 | 0 | 0
Rental Revenue: Hotel | 0 | 0 | 0 | 0
Total revenue | 243,033 | 214,086 | 684,240 | 510,767
Rental Revenue: % of Grand Totals | 39.69% | 37.83% | 38.76% | 33.23%
Rental Expenses: Class A Office | 82,335 | 73,355 | 231,668 | 177,800
Rental Expenses: Office/Technical | 0 | 0 | 0 | 0
Rental Expenses: Residential | 0 | 0 | 0 | 0
Rental Expenses: Hotel | 0 | 0 | 0 | 0
Rental Expenses: Total | 82,335 | 73,355 | 231,668 | 177,800
Rental Expenses: % Of Grand Totals | 36.96% | 35.63% | 35.86% | 31.45%
Net operating Income | 160,698 | 140,731 | 452,572 | 332,967
Net operating Income: % of Grand Totals | 41.25% | 39.08% | 40.43% | 34.26%
San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Class A Office | 61,691 | 53,841 | 173,749 | 159,843
Rental Revenue: Office/Technical | 5,892 | 5,839 | 18,451 | 11,317
Rental Revenue: Residential | 0 | 0 | 0 | 0
Rental Revenue: Hotel | 0 | 0 | 0 | 0
Total revenue | 67,583 | 59,680 | 192,200 | 171,160
Rental Revenue: % of Grand Totals | 11.04% | 10.54% | 10.89% | 11.13%
Rental Expenses: Class A Office | 22,484 | 20,006 | 63,078 | 58,036
Rental Expenses: Office/Technical | 1,363 | 1,287 | 3,885 | 2,439
Rental Expenses: Residential | 0 | 0 | 0 | 0
Rental Expenses: Hotel | 0 | 0 | 0 | 0
Rental Expenses: Total | 23,847 | 21,293 | 66,963 | 60,475
Rental Expenses: % Of Grand Totals | 10.71% | 10.34% | 10.37% | 10.70%
Net operating Income | 43,736 | 38,387 | 125,237 | 110,685
Net operating Income: % of Grand Totals | 11.23% | 10.66% | 11.19% | 11.39%
Washington, DC |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Class A Office | 96,219 | 96,141 | 287,489 | 284,554
Rental Revenue: Office/Technical | 3,713 | 3,877 | 11,044 | 11,951
Rental Revenue: Residential | 5,881 | 4,368 | 15,609 | 13,298
Rental Revenue: Hotel | 0 | 0 | 0 | 0
Total revenue | 105,813 | 104,386 | 314,142 | 309,803
Rental Revenue: % of Grand Totals | 17.28% | 18.44% | 17.80% | 20.15%
Rental Expenses: Class A Office | 32,898 | 31,678 | 98,818 | 94,145
Rental Expenses: Office/Technical | 1,009 | 1,064 | 3,335 | 3,095
Rental Expenses: Residential | 3,654 | 2,441 | 10,360 | 7,154
Rental Expenses: Hotel | 0 | 0 | 0 | 0
Rental Expenses: Total | 37,561 | 35,183 | 112,513 | 104,394
Rental Expenses: % Of Grand Totals | 16.86% | 17.09% | 17.42% | 18.47%
Net operating Income | $ 68,252 | $ 69,203 | $ 201,629 | $ 205,409
Net operating Income: % of Grand Totals | 17.52% | 19.21% | 18.02% | 21.13%

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