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v3.21.1

Segment Information (Schedule Of Segment Reporting By Geographic Area And Property Type) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | $ 693,580 | $ 724,659
Rental Revenue: Residential | [1] | 9,175 | 9,956
Rental Revenue Total | [1] | $ 703,387 | $ 741,440
Rental Revenue: % of Grand Totals | [1] | 100.00% | 100.00%
Rental Expenses: Class A Office |  | $ 251,262 | $ 258,902
Rental Expenses: Residential |  | 6,127 | 4,064
Rental Expenses: Total |  | $ 259,440 | $ 269,787
Rental Expenses: % Of Grand Totals |  | 100.00% | 100.00%
Net Operating Income |  | $ 443,947 | $ 471,653
Net Operating Income: % of Grand Totals |  | 100.00% | 100.00%
Company's Share of Net Operating Income: % of Grand Totals |  | 100.00% | 100.00%
Total revenue |  | $ 713,695 | $ 752,556
Boston [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | 230,403 | 239,498
Rental Revenue: Residential | [1] | 3,045 | 4,068
Rental Revenue Total | [1] | $ 234,080 | $ 250,391
Rental Revenue: % of Grand Totals | [1] | 33.28% | 33.77%
Rental Expenses: Class A Office |  | $ 79,881 | $ 82,545
Rental Expenses: Residential |  | 1,455 | 1,340
Rental Expenses: Total |  | $ 83,387 | $ 90,706
Rental Expenses: % Of Grand Totals |  | 32.14% | 33.62%
Net Operating Income |  | $ 150,693 | $ 159,685
Net Operating Income: % of Grand Totals |  | 33.94% | 33.85%
Company's Share of Net Operating Income: % of Grand Totals |  | 33.64% | 33.60%
Los Angeles [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | $ 0 | $ 0
Rental Revenue: Residential | [1] | 0 | 0
Rental Revenue Total | [1] | $ 0 | $ 0
Rental Revenue: % of Grand Totals | [1] | 0.00% | 0.00%
Rental Expenses: Class A Office |  | $ 0 | $ 0
Rental Expenses: Residential |  | 0 | 0
Rental Expenses: Total |  | $ 0 | $ 0
Rental Expenses: % Of Grand Totals |  | 0.00% | 0.00%
Net Operating Income |  | $ 0 | $ 0
Net Operating Income: % of Grand Totals |  | 0.00% | 0.00%
Company's Share of Net Operating Income: % of Grand Totals |  | 3.34% | 3.52%
New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | $ 250,164 | $ 255,286
Rental Revenue: Residential | [1] | 0 | 0
Rental Revenue Total | [1] | $ 250,164 | $ 255,286
Rental Revenue: % of Grand Totals | [1] | 35.57% | 34.43%
Rental Expenses: Class A Office |  | $ 99,385 | $ 99,140
Rental Expenses: Residential |  | 0 | 0
Rental Expenses: Total |  | $ 99,385 | $ 99,140
Rental Expenses: % Of Grand Totals |  | 38.31% | 36.75%
Net Operating Income |  | $ 150,779 | $ 156,146
Net Operating Income: % of Grand Totals |  | 33.97% | 33.11%
Company's Share of Net Operating Income: % of Grand Totals |  | 27.30% | 26.48%
San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | $ 130,598 | $ 136,739
Rental Revenue: Residential | [1] | 321 | 0
Rental Revenue Total | [1] | $ 130,919 | $ 136,739
Rental Revenue: % of Grand Totals | [1] | 18.61% | 18.44%
Rental Expenses: Class A Office |  | $ 40,249 | $ 42,569
Rental Expenses: Residential |  | 1,686 | 0
Rental Expenses: Total |  | $ 41,935 | $ 42,569
Rental Expenses: % Of Grand Totals |  | 16.16% | 15.78%
Net Operating Income |  | $ 88,984 | $ 94,170
Net Operating Income: % of Grand Totals |  | 20.04% | 19.97%
Company's Share of Net Operating Income: % of Grand Totals |  | 21.79% | 21.50%
Washington, DC [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Rental Revenue: Class A Office | [1] | $ 82,415 | $ 93,136
Rental Revenue: Residential | [1] | 5,809 | 5,888
Rental Revenue Total | [1] | $ 88,224 | $ 99,024
Rental Revenue: % of Grand Totals | [1] | 12.54% | 13.36%
Rental Expenses: Class A Office |  | $ 31,747 | $ 34,648
Rental Expenses: Residential |  | 2,986 | 2,724
Rental Expenses: Total |  | $ 34,733 | $ 37,372
Rental Expenses: % Of Grand Totals |  | 13.39% | 13.85%
Net Operating Income |  | $ 53,491 | $ 61,652
Net Operating Income: % of Grand Totals |  | 12.05% | 13.07%
Company's Share of Net Operating Income: % of Grand Totals |  | 13.93% | 14.90%
Hotel [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | $ 632 | $ 6,825
Operating expense |  | 2,051 | 6,821
Hotel [Member] | Boston [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | 632 | 6,825
Operating expense |  | 2,051 | 6,821
Hotel [Member] | Los Angeles [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | 0 | 0
Operating expense |  | 0 | 0
Hotel [Member] | New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | 0 | 0
Operating expense |  | 0 | 0
Hotel [Member] | San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | 0 | 0
Operating expense |  | 0 | 0
Hotel [Member] | Washington, DC [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other revenue | [1] | 0 | 0
Operating expense |  | 0 | 0
Noncontrolling interest - property partnerships [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | (44,376) | (47,661)
Noncontrolling interest - property partnerships [Member] | Boston [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | (10,224) | (10,663)
Noncontrolling interest - property partnerships [Member] | Los Angeles [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 0 | 0
Noncontrolling interest - property partnerships [Member] | New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | (34,152) | (36,998)
Noncontrolling interest - property partnerships [Member] | San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 0 | 0
Noncontrolling interest - property partnerships [Member] | Washington, DC [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 0 | 0
Unconsolidated Joint Ventures [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 24,795 | 28,758
Total revenue | [2] | 87,266 | 93,203
Unconsolidated Joint Ventures [Member] | Boston [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 2,281 | 3,099
Unconsolidated Joint Ventures [Member] | Los Angeles [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 14,192 | 15,930
Unconsolidated Joint Ventures [Member] | New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | (793) | 756
Unconsolidated Joint Ventures [Member] | San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 3,480 | 3,159
Unconsolidated Joint Ventures [Member] | Washington, DC [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 5,635 | 5,814
Company's Share [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 424,366 | 452,750
Company's Share [Member] | Boston [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 142,750 | 152,121
Company's Share [Member] | Los Angeles [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 14,192 | 15,930
Company's Share [Member] | New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 115,834 | 119,904
Company's Share [Member] | San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | 92,464 | 97,329
Company's Share [Member] | Washington, DC [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Operating Income |  | $ 59,126 | $ 67,466
[1] | Rental Revenue is equal to Total Revenue per the Company’s Consolidated Statements of Operations, less Development and Management Services Revenue and Direct Reimbursements of Payroll and Related Costs from Management Services Contracts Revenue per the Consolidated Statements of Operations.
[2] | Includes straight-line rent adjustments of approximately $1.1 million and $9.7 million for the three months ended March 31, 2021 and 2020, respectively. For the three months ended March 31, 2021, write-offs of accounts receivable and accrued rent balances totaled approximately $0.3 million.

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