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Reportable Segments (Tables) | 12 Months Ended
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Dec. 31, 2015
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract] |
Reconciliation of NOI | The following table presents a reconciliation of NOI from our rental real estate specific to continuing operations for the years ended December 31, 2015, 2014 and 2013, respectively (amounts in thousands):
|  | Year Ended December 31,
|  | 2015 |  | 2014 |  | 2013
Rental income |  | $ | 2,736,578 |  |  | $ | 2,605,311 |  |  | $ | 2,378,004 |
Property and maintenance expense |  | (479,160 | ) |  | (473,098 | ) |  | (449,427 | )
Real estate taxes and insurance expense |  | (339,802 | ) |  | (325,401 | ) |  | (293,999 | )
Property management expense |  | (81,185 | ) |  | (79,636 | ) |  | (84,342 | )
Total operating expenses |  | (900,147 | ) |  | (878,135 | ) |  | (827,768 | )
Net operating income |  | $ | 1,836,431 |  |  | $ | 1,727,176 |  |  | $ | 1,550,236 |
Reportable Segments Schedule | The following tables present NOI for each segment from our rental real estate specific to continuing operations for the years ended December 31, 2015, 2014 and 2013, respectively, as well as total assets and capital expenditures at December 31, 2015 and 2014, respectively (amounts in thousands):
|  | Year Ended December 31, 2015 |  | Year Ended December 31, 2014 |  | Year Ended December 31, 2013
|  | Rental Income |  | Operating Expenses |  | NOI |  | Rental Income |  | Operating Expenses |  | NOI |  | Rental Income |  | Operating Expenses |  | NOI
Same store (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Boston |  | $ | 252,620 |  |  | $ | 81,176 |  |  | $ | 171,444 |  |  | $ | 244,612 |  |  | $ | 77,408 |  |  | $ | 167,204 |  |  | $ | 244,370 |  |  | $ | 78,249 |  |  | $ | 166,121 |
New York |  | 474,850 |  |  | 176,654 |  |  | 298,196 |  |  | 455,598 |  |  | 170,549 |  |  | 285,049 |  |  | 438,366 |  |  | 165,329 |  |  | 273,037 |
San Francisco |  | 376,073 |  |  | 108,003 |  |  | 268,070 |  |  | 340,252 |  |  | 106,425 |  |  | 233,827 |  |  | 312,345 |  |  | 108,218 |  |  | 204,127 |
Seattle |  | 164,319 |  |  | 50,079 |  |  | 114,240 |  |  | 153,197 |  |  | 50,377 |  |  | 102,820 |  |  | 146,109 |  |  | 49,169 |  |  | 96,940 |
Southern California |  | 433,431 |  |  | 136,559 |  |  | 296,872 |  |  | 410,094 |  |  | 135,091 |  |  | 275,003 |  |  | 401,516 |  |  | 137,667 |  |  | 263,849 |
Washington D.C. |  | 455,341 |  |  | 149,190 |  |  | 306,151 |  |  | 451,973 |  |  | 145,523 |  |  | 306,450 |  |  | 448,520 |  |  | 140,708 |  |  | 307,812 |
Non-core – South Florida |  | 202,714 |  |  | 72,792 |  |  | 129,922 |  |  | 191,729 |  |  | 70,295 |  |  | 121,434 |  |  | 182,620 |  |  | 69,475 |  |  | 113,145 |
Non-core – Denver |  | 120,938 |  |  | 31,708 |  |  | 89,230 |  |  | 111,190 |  |  | 30,811 |  |  | 80,379 |  |  | 103,124 |  |  | 30,567 |  |  | 72,557 |
Non-core – other |  | 86,419 |  |  | 31,719 |  |  | 54,700 |  |  | 82,745 |  |  | 30,858 |  |  | 51,887 |  |  | 97,380 |  |  | 36,483 |  |  | 60,897 |
Total same store |  | 2,566,705 |  |  | 837,880 |  |  | 1,728,825 |  |  | 2,441,390 |  |  | 817,337 |  |  | 1,624,053 |  |  | 2,374,350 |  |  | 815,865 |  |  | 1,558,485 |
Non-same store/other (2) (3) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Boston |  | 9,028 |  |  | 2,570 |  |  | 6,458 |  |  | 3,637 |  |  | 841 |  |  | 2,796 |  |  | 2,728 |  |  | 651 |  |  | 2,077 |
New York |  | 9,835 |  |  | 7,460 |  |  | 2,375 |  |  | 42 |  |  | 92 |  |  | (50 | ) |  | — |  |  | — |  |  | — |
San Francisco |  | 6,408 |  |  | 2,974 |  |  | 3,434 |  |  | 15 |  |  | 147 |  |  | (132 | ) |  | — |  |  | — |  |  | — |
Seattle |  | 22,199 |  |  | 6,478 |  |  | 15,721 |  |  | 6,951 |  |  | 2,172 |  |  | 4,779 |  |  | 4,387 |  |  | 1,336 |  |  | 3,051 |
Southern California |  | 71,719 |  |  | 26,264 |  |  | 45,455 |  |  | 49,663 |  |  | 19,518 |  |  | 30,145 |  |  | 15,016 |  |  | 6,846 |  |  | 8,170 |
Washington D.C. |  | 21,822 |  |  | 6,313 |  |  | 15,509 |  |  | 17,927 |  |  | 6,115 |  |  | 11,812 |  |  | 13,562 |  |  | 4,086 |  |  | 9,476 |
Non-core – South Florida |  | 7,912 |  |  | 2,830 |  |  | 5,082 |  |  | 5,480 |  |  | 2,619 |  |  | 2,861 |  |  | 390 |  |  | 810 |  |  | (420 | )
Other (3) |  | 20,950 |  |  | 7,378 |  |  | 13,572 |  |  | 80,206 |  |  | 29,294 |  |  | 50,912 |  |  | 59,994 |  |  | 34,903 |  |  | 25,091 |
Total non-same store/other |  | 169,873 |  |  | 62,267 |  |  | 107,606 |  |  | 163,921 |  |  | 60,798 |  |  | 103,123 |  |  | 96,077 |  |  | 48,632 |  |  | 47,445 |
Archstone pre-ownership (4) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (92,423 | ) |  | (36,729 | ) |  | (55,694 | )
Total |  | $ | 2,736,578 |  |  | $ | 900,147 |  |  | $ | 1,836,431 |  |  | $ | 2,605,311 |  |  | $ | 878,135 |  |  | $ | 1,727,176 |  |  | $ | 2,378,004 |  |  | $ | 827,768 |  |  | $ | 1,550,236 |
(1) | For the years ended December 31, 2015 and 2014, same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2014, less properties subsequently sold, which represented 96,286 apartment units. For the year ended December 31, 2013, same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2013, less properties subsequently sold, which represented 97,911 apartment units and also includes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.
(2) | For the years ended December 31, 2015 and 2014, non-same store primarily includes properties acquired after January 1, 2014, plus any properties in lease-up and not stabilized as of January 1, 2014. For the year ended December 31, 2013, non-same store primarily includes properties acquired after January 1, 2013, plus any properties in lease-up and not stabilized as of January 1, 2013, but excludes 18,465 stabilized apartment units acquired in the Archstone Acquisition that are owned and managed by the Company.
(3) | Other includes development, other corporate operations and operations prior to sale for properties sold in 2014 and 2015 that do not meet the new discontinued operations criteria.
(4) | Represents pro forma Archstone pre-ownership results for the period January 1, 2013 to February 27, 2013 that is included in 2013 same store results.
|  | Year Ended December 31, 2015 |  | Year Ended December 31, 2014
|  | Total Assets |  | Capital Expenditures |  | Total Assets |  | Capital Expenditures
Same store (1) |  |  |  |  |  |  |  |  |  |  |  |
Boston |  | $ | 1,840,812 |  |  | $ | 18,759 |  |  | $ | 1,897,740 |  |  | $ | 19,254 |
New York |  | 4,585,328 |  |  | 19,273 |  |  | 4,647,269 |  |  | 22,118 |
San Francisco |  | 2,653,629 |  |  | 25,813 |  |  | 2,718,174 |  |  | 26,994 |
Seattle |  | 1,058,090 |  |  | 13,565 |  |  | 1,087,575 |  |  | 14,333 |
Southern California |  | 2,725,230 |  |  | 29,729 |  |  | 2,809,390 |  |  | 26,713 |
Washington D.C. |  | 4,169,317 |  |  | 35,522 |  |  | 4,282,317 |  |  | 44,607 |
Non-core – South Florida |  | 1,109,699 |  |  | 16,297 |  |  | 1,135,553 |  |  | 14,335 |
Non-core – Denver |  | 506,317 |  |  | 8,341 |  |  | 520,537 |  |  | 5,863 |
Non-core – other |  | 322,281 |  |  | 6,115 |  |  | 333,398 |  |  | 4,743 |
Total same store |  | 18,970,703 |  |  | 173,414 |  |  | 19,431,953 |  |  | 178,960 |
Non-same store/other (2) (3) |  |  |  |  |  |  |  |
Boston |  | 171,832 |  |  | 629 |  |  | 48,323 |  |  | 699 |
New York |  | 364,475 |  |  | (8 | ) |  | 356,064 |  |  | 12 |
San Francisco |  | 262,851 |  |  | 6 |  |  | 218,415 |  |  | — |
Seattle |  | 453,111 |  |  | 457 |  |  | 335,086 |  |  | 918 |
Southern California |  | 911,728 |  |  | 6,360 |  |  | 851,812 |  |  | 1,968 |
Washington D.C. |  | 235,841 |  |  | 677 |  |  | 243,174 |  |  | 467 |
Non-core – South Florida |  | 64,854 |  |  | 42 |  |  | 67,834 |  |  | 8 |
Other (3) |  | 1,721,933 |  |  | 536 |  |  | 1,397,953 |  |  | 2,925 |
Total non-same store/other |  | 4,186,625 |  |  | 8,699 |  |  | 3,518,661 |  |  | 6,997 |
Total |  | $ | 23,157,328 |  |  | $ | 182,113 |  |  | $ | 22,950,614 |  |  | $ | 185,957 |
(1) | Same store primarily includes all properties acquired or completed and stabilized prior to January 1, 2014, less properties subsequently sold, which represented 96,286 apartment units.
(2) | Non-same store primarily includes properties acquired after January 1, 2014, plus any properties in lease-up and not stabilized as of January 1, 2014.
(3) | Other includes development, other corporate operations and capital expenditures for properties sold.
Note: Markets/Metro Areas included in the above Southern California and Non-core – other segments are as follows: (a) Southern California – Los Angeles, Orange County and San Diego. (b) Non-core – other – Inland Empire, CA, New England (excluding Boston) and Phoenix.

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