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v3.25.2

Segment Information (Schedule Of Segment Reporting By Geographic Area And Property Type) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 828,202 | $ 812,944 | $ 1,657,198 | $ 1,621,066
Rental Revenue: Residential | 12,532 | 12,226 | 24,880 | 24,910
Rental Revenue Total | $ 855,507 | $ 839,982 | $ 1,706,448 | $ 1,668,974
Rental Revenue: % of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Rental Expenses: Office | $ 325,484 | $ 315,687 | $ 651,165 | $ 624,158
Rental Expenses: Residential | 6,578 | 5,739 | 12,475 | 11,425
Rental Expenses: Total | $ 341,427 | $ 331,265 | $ 680,570 | $ 651,437
Rental Expenses: % Of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Net Operating Income | $ 514,080 | $ 508,717 | $ 1,025,878 | $ 1,017,537
Net Operating Income: % of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Company's Share of Net Operating Income: % of Grand Totals | 100.00% | 100.00% | 100.00% | 100.00%
Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 303,822 | $ 285,352 | $ 609,111 | $ 565,818
Rental Revenue: Residential | 4,400 | 4,272 | 8,529 | 8,468
Rental Revenue Total | $ 322,995 | $ 304,436 | $ 642,010 | $ 597,284
Rental Revenue: % of Grand Totals | 37.75% | 36.25% | 37.63% | 35.80%
Rental Expenses: Office | $ 111,235 | $ 108,908 | $ 228,120 | $ 214,079
Rental Expenses: Residential | 1,673 | 1,543 | 3,481 | 3,136
Rental Expenses: Total | $ 122,273 | $ 120,290 | $ 248,531 | $ 233,069
Rental Expenses: % Of Grand Totals | 35.81% | 36.31% | 36.51% | 35.77%
Net Operating Income | $ 200,722 | $ 184,146 | $ 393,479 | $ 364,215
Net Operating Income: % of Grand Totals | 39.05% | 36.20% | 38.36% | 35.80%
Company's Share of Net Operating Income: % of Grand Totals | 39.32% | 36.91% | 38.44% | 36.31%
Los Angeles [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 17,616 | $ 18,472 | $ 34,781 | $ 38,873
Rental Revenue: Residential | 0 | 0 | 0 | 0
Rental Revenue Total | $ 17,616 | $ 18,472 | $ 34,781 | $ 38,873
Rental Revenue: % of Grand Totals | 2.06% | 2.20% | 2.04% | 2.33%
Rental Expenses: Office | $ 6,950 | $ 6,767 | $ 13,446 | $ 13,334
Rental Expenses: Residential | 0 | 0 | 0 | 0
Rental Expenses: Total | $ 6,950 | $ 6,767 | $ 13,446 | $ 13,334
Rental Expenses: % Of Grand Totals | 2.04% | 2.04% | 1.98% | 2.05%
Net Operating Income | $ 10,666 | $ 11,705 | $ 21,335 | $ 25,539
Net Operating Income: % of Grand Totals | 2.07% | 2.30% | 2.08% | 2.51%
Company's Share of Net Operating Income: % of Grand Totals | 3.59% | 3.80% | 3.62% | 4.02%
New York [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 264,089 | $ 261,805 | $ 527,514 | $ 522,614
Rental Revenue: Residential | 0 | 0 | 0 | 0
Rental Revenue Total | $ 264,089 | $ 261,805 | $ 527,514 | $ 522,614
Rental Revenue: % of Grand Totals | 30.87% | 31.17% | 30.91% | 31.31%
Rental Expenses: Office | $ 114,676 | $ 108,476 | $ 224,637 | $ 215,957
Rental Expenses: Residential | 0 | 0 | 0 | 0
Rental Expenses: Total | $ 114,676 | $ 108,476 | $ 224,637 | $ 215,957
Rental Expenses: % Of Grand Totals | 33.59% | 32.75% | 33.01% | 33.15%
Net Operating Income | $ 149,413 | $ 153,329 | $ 302,877 | $ 306,657
Net Operating Income: % of Grand Totals | 29.06% | 30.14% | 29.52% | 30.14%
Company's Share of Net Operating Income: % of Grand Totals | 23.32% | 24.35% | 24.05% | 24.61%
San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 125,380 | $ 131,709 | $ 251,188 | $ 264,323
Rental Revenue: Residential | 3,355 | 3,318 | 6,858 | 7,276
Rental Revenue Total | $ 128,735 | $ 135,027 | $ 258,046 | $ 271,599
Rental Revenue: % of Grand Totals | 15.05% | 16.07% | 15.12% | 16.27%
Rental Expenses: Office | $ 49,632 | $ 48,668 | $ 98,184 | $ 95,610
Rental Expenses: Residential | 2,804 | 2,169 | 4,944 | 4,387
Rental Expenses: Total | $ 52,436 | $ 50,837 | $ 103,128 | $ 99,997
Rental Expenses: % Of Grand Totals | 15.36% | 15.35% | 15.15% | 15.35%
Net Operating Income | $ 76,299 | $ 84,190 | $ 154,918 | $ 171,602
Net Operating Income: % of Grand Totals | 14.84% | 16.55% | 15.10% | 16.86%
Company's Share of Net Operating Income: % of Grand Totals | 16.31% | 17.97% | 16.56% | 18.29%
Seattle |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 12,112 | $ 10,520 | $ 24,103 | $ 21,430
Rental Revenue: Residential | 0 | 0 | 0 | 0
Rental Revenue Total | $ 12,112 | $ 10,520 | $ 24,103 | $ 21,430
Rental Revenue: % of Grand Totals | 1.42% | 1.25% | 1.41% | 1.28%
Rental Expenses: Office | $ 2,986 | $ 3,290 | $ 5,982 | $ 6,371
Rental Expenses: Residential | 0 | 0 | 0 | 0
Rental Expenses: Total | $ 2,986 | $ 3,290 | $ 5,982 | $ 6,371
Rental Expenses: % Of Grand Totals | 0.87% | 0.99% | 0.88% | 0.98%
Net Operating Income | $ 9,126 | $ 7,230 | $ 18,121 | $ 15,059
Net Operating Income: % of Grand Totals | 1.78% | 1.42% | 1.77% | 1.48%
Company's Share of Net Operating Income: % of Grand Totals | 2.31% | 1.86% | 2.29% | 1.91%
Washington, DC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Rental Revenue: Office | $ 105,183 | $ 105,086 | $ 210,501 | $ 208,008
Rental Revenue: Residential | 4,777 | 4,636 | 9,493 | 9,166
Rental Revenue Total | $ 109,960 | $ 109,722 | $ 219,994 | $ 217,174
Rental Revenue: % of Grand Totals | 12.85% | 13.06% | 12.89% | 13.01%
Rental Expenses: Office | $ 40,005 | $ 39,578 | $ 80,796 | $ 78,807
Rental Expenses: Residential | 2,101 | 2,027 | 4,050 | 3,902
Rental Expenses: Total | $ 42,106 | $ 41,605 | $ 84,846 | $ 82,709
Rental Expenses: % Of Grand Totals | 12.33% | 12.56% | 12.47% | 12.70%
Net Operating Income | $ 67,854 | $ 68,117 | $ 135,148 | $ 134,465
Net Operating Income: % of Grand Totals | 13.20% | 13.39% | 13.17% | 13.21%
Company's Share of Net Operating Income: % of Grand Totals | 15.15% | 15.11% | 15.04% | 14.86%
Hotel [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | $ 14,773 | $ 14,812 | $ 24,370 | $ 22,998
Operating expense | 9,365 | 9,839 | 16,930 | 15,854
Hotel [Member] | Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 14,773 | 14,812 | 24,370 | 22,998
Operating expense | 9,365 | 9,839 | 16,930 | 15,854
Hotel [Member] | Los Angeles [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 0 | 0 | 0 | 0
Operating expense | 0 | 0 | 0 | 0
Hotel [Member] | New York [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 0 | 0 | 0 | 0
Operating expense | 0 | 0 | 0 | 0
Hotel [Member] | San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 0 | 0 | 0 | 0
Operating expense | 0 | 0 | 0 | 0
Hotel [Member] | Seattle |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 0 | 0 | 0 | 0
Operating expense | 0 | 0 | 0 | 0
Hotel [Member] | Washington, DC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other revenue | 0 | 0 | 0 | 0
Operating expense | 0 | 0 | 0 | 0
Noncontrolling interest - property partnerships [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | (51,562) | (47,391) | (101,264) | (93,961)
Noncontrolling interest - property partnerships [Member] | Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | (15,728) | (10,924) | (31,029) | (21,980)
Noncontrolling interest - property partnerships [Member] | Los Angeles [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 0 | 0 | 0 | 0
Noncontrolling interest - property partnerships [Member] | New York [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | (35,834) | (36,467) | (70,235) | (71,981)
Noncontrolling interest - property partnerships [Member] | San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 0 | 0 | 0 | 0
Noncontrolling interest - property partnerships [Member] | Seattle |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 0 | 0 | 0 | 0
Noncontrolling interest - property partnerships [Member] | Washington, DC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 0 | 0 | 0 | 0
Unconsolidated Joint Ventures [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 31,029 | 31,587 | 63,711 | 67,017
Unconsolidated Joint Ventures [Member] | Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 9,070 | 8,691 | 17,521 | 17,448
Unconsolidated Joint Ventures [Member] | Los Angeles [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 7,053 | 7,035 | 14,405 | 14,283
Unconsolidated Joint Ventures [Member] | New York [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 1,511 | 3,158 | 5,024 | 9,142
Unconsolidated Joint Ventures [Member] | San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 4,198 | 4,411 | 8,779 | 9,565
Unconsolidated Joint Ventures [Member] | Seattle |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 2,277 | 1,938 | 4,534 | 3,814
Unconsolidated Joint Ventures [Member] | Washington, DC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 6,920 | 6,354 | 13,448 | 12,765
Company's Share [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 493,547 | 492,913 | 988,325 | 990,593
Company's Share [Member] | Boston [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 194,064 | 181,913 | 379,971 | 359,683
Company's Share [Member] | Los Angeles [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 17,719 | 18,740 | 35,740 | 39,822
Company's Share [Member] | New York [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 115,090 | 120,020 | 237,666 | 243,818
Company's Share [Member] | San Francisco [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 80,497 | 88,601 | 163,697 | 181,167
Company's Share [Member] | Seattle |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | 11,403 | 9,168 | 22,655 | 18,873
Company's Share [Member] | Washington, DC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Operating Income | $ 74,774 | $ 74,471 | $ 148,596 | $ 147,230

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