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Investments in Unconsolidated Joint Ventures (Tables) | 6 Months Ended
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Jun. 30, 2022
Schedule of Equity Method Investments [Line Items] |
Investments In Unconsolidated Joint Ventures | The investments in unconsolidated joint ventures consist of the following at June 30, 2022 and December 31, 2021:
|  |  |  |  |  | Carrying Value of Investment (1)
Entity |  | Properties |  | Nominal % Ownership |  | June 30, 2022 |  | December 31, 2021
|  |  |  |  |  | (in thousands)
Square 407 Limited Partnership |  | Market Square North |  | 50.00 | % |  | $ | (4,801) |  |  | $ | (1,205) |
BP/CRF Metropolitan Square LLC |  | Metropolitan Square |  | 20.00 | % |  | (38,503) |  |  | (15,356) |
901 New York, LLC |  | 901 New York Avenue |  | 25.00 | % | (2) | (12,542) |  |  | (12,597) |
WP Project Developer LLC |  | Wisconsin Place Land and Infrastructure |  | 33.33 | % | (3) | 32,980 |  |  | 33,732 |
500 North Capitol Venture LLC |  | 500 North Capitol Street, NW |  | 30.00 | % |  | (9,015) |  |  | (7,913) |
501 K Street LLC |  | 1001 6th Street |  | 50.00 | % | (4) | 42,691 |  |  | 42,576 |
Podium Developer LLC |  | The Hub on Causeway - Podium |  | 50.00 | % |  | 49,403 |  |  | 48,980 |
Residential Tower Developer LLC |  | Hub50House |  | 50.00 | % |  | 42,019 |  |  | 47,774 |
Hotel Tower Developer LLC |  | The Hub on Causeway - Hotel Air Rights |  | 50.00 | % |  | 11,974 |  |  | 11,505 |
Office Tower Developer LLC |  | 100 Causeway Street |  | 50.00 | % |  | 59,425 |  |  | 57,687 |
1265 Main Office JV LLC |  | 1265 Main Street |  | 50.00 | % |  | 3,234 |  |  | 3,541 |
BNY Tower Holdings LLC |  | Dock 72 |  | 50.00 | % |  | 28,893 |  |  | 27,343 |
BNYTA Amenity Operator LLC |  | Dock 72 |  | 50.00 | % |  | 902 |  |  | 1,069 |
CA-Colorado Center Limited Partnership |  | Colorado Center |  | 50.00 | % |  | 233,026 |  |  | 231,479 |
7750 Wisconsin Avenue LLC |  | 7750 Wisconsin Avenue |  | 50.00 | % |  | 54,589 |  |  | 61,626 |
BP-M 3HB Venture LLC |  | 3 Hudson Boulevard |  | 25.00 | % |  | 116,388 |  |  | 116,306 |
SMBP Venture LP |  | Santa Monica Business Park |  | 55.00 | % |  | 163,888 |  |  | 156,639 |
Platform 16 Holdings LP |  | Platform 16 |  | 55.00 | % | (5) | 132,845 |  |  | 109,086 |
Gateway Portfolio Holdings LLC |  | Gateway Commons |  | 50.00 | % | (6) | 305,236 |  |  | 327,148 |
Rosecrans-Sepulveda Partners 4, LLC |  | Beach Cities Media Campus |  | 50.00 | % |  | 27,045 |  |  | 27,106 |
Safeco Plaza REIT LLC |  | Safeco Plaza |  | 33.67 | % | (7) | 71,630 |  |  | 72,545 |
360 PAS Holdco LLC |  | 360 Park Avenue South |  | 42.21 | % | (8) | 111,209 |  |  | 106,855 |
PR II/BXP Reston Gateway LLC |  | Reston Next Residential |  | 20.00 | % | (5)(9) | 11,140 |  |  | N/A
751 Gateway Holdings LLC |  | 751 Gateway |  | 49.00 | % | (6) | 56,477 |  |  | N/A
|  |  |  |  |  | $ | 1,490,133 |  |  | $ | 1,445,926 |
_______________ (1)Investments with deficit balances aggregating approximately $64.9 million and $37.1 million at June 30, 2022 and December 31, 2021, respectively, are included within Other Liabilities in the Company’s Consolidated Balance Sheets. (2)The Company’s economic ownership has increased based on the achievement of certain return thresholds. At June 30, 2022 and December 31, 2021, the Company’s economic ownership was approximately 50%. (3)The Company’s wholly-owned subsidiary that owns Wisconsin Place Office also owns a 33.33% interest in the joint venture entity that owns the land, parking garage and infrastructure of the project. (4)Under the joint venture agreement for this land parcel, the partner will be entitled to up to two additional payments from the venture based on increases in total entitled square footage of the project in excess of 520,000 square feet and achieving certain project returns at stabilization. (5)This entity is a VIE (See Note 2). (6)On June 16, 2022, 751 Gateway was segregated from Gateway Commons into a single-purpose joint venture. (7)The Company’s ownership includes (1) a 33.0% direct interest in the joint venture, and (2) an additional 1% interest in each of the two entities through which each partner owns its interest in the joint venture. (8)The Company’s ownership includes (1) a 35.79% direct interest in the joint venture, (2) an additional 5.837% indirect ownership in the joint venture, and (3) an additional 1% interest in each of the two entities through which each partner owns its interest in the joint venture. The Company’s partners will fund required capital until their aggregate investment is approximately 58% of all capital contributions; thereafter, the partners will fund required capital according to their percentage interests. (9)The Company’s partner will fund required capital until their aggregate investment is approximately 80% of all capital contributions; thereafter, the partners will fund required capital according to their percentage interests.
Schedule Of Balance Sheets Of The Unconsolidated Joint Ventures [Text Block] | The combined summarized balance sheets of the Company’s unconsolidated joint ventures are as follows:
| June 30, 2022 |  | December 31, 2021
| (in thousands)
ASSETS |  |  |
Real estate and development in process, net (1) | $ | 5,748,274 |  |  | $ | 5,579,218 |
Other assets | 646,872 |  |  | 586,470 |
Total assets | $ | 6,395,146 |  |  | $ | 6,165,688 |
LIABILITIES AND MEMBERS’/PARTNERS’ EQUITY |  |  |
Mortgage and notes payable, net | $ | 3,413,562 |  |  | $ | 3,214,961 |
Other liabilities (2) | 657,692 |  |  | 652,135 |
Members’/Partners’ equity | 2,323,892 |  |  | 2,298,592 |
Total liabilities and members’/partners’ equity | $ | 6,395,146 |  |  | $ | 6,165,688 |
Company’s share of equity | $ | 1,145,306 |  |  | $ | 1,104,175 |
Basis differentials (3) | 344,827 |  |  | 341,751 |
Carrying value of the Company’s investments in unconsolidated joint ventures (4) | $ | 1,490,133 |  |  | $ | 1,445,926 |
_______________ (1)At June 30, 2022 and December 31, 2021, this amount included right of use assets - finance leases totaling approximately $248.9 million. At June 30, 2022 and December 31, 2021, this amount included right of use assets - operating leases totaling approximately $21.7 million and $22.3 million, respectively. (2)At June 30, 2022 and December 31, 2021, this amount included lease liabilities - finance leases totaling approximately $383.9 million and $385.5 million, respectively. At June 30, 2022 and December 31, 2021, this amount included lease liabilities - operating leases totaling approximately $30.4 million. (3)This amount represents the aggregate difference between the Company’s historical cost basis and the basis reflected at the joint venture level, which is typically amortized over the life of the related assets and liabilities. Basis differentials result from impairments of investments, acquisitions through joint ventures with no change in control and upon the transfer of assets that were previously owned by the Company into a joint venture. In addition, certain acquisition, transaction and other costs may not be reflected in the net assets at the joint venture level. The majority of the Company’s basis differences are as follows:
| June 30, 2022 |  | December 31, 2021
Property | (in thousands)
Colorado Center | $ | 303,261 |  |  | $ | 304,776 |
Gateway Commons | 50,932 |  |  | 51,009 |
Dock 72 | (49,195) |  |  | (50,051) |
These basis differentials (excluding land) will be amortized over the remaining lives of the related assets and liabilities. (4)Investments with deficit balances aggregating approximately $64.9 million and $37.1 million at June 30, 2022 and December 31, 2021, respectively, are reflected within Other Liabilities in the Company’s Consolidated Balance Sheets.
Statements Of Operations Of The Joint Ventures | The combined summarized statements of operations of the Company’s unconsolidated joint ventures are as follows:
| Three months ended June 30, |  | Six months ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021 |  |
| (in thousands)
Total revenue (1) | $ | 120,871 |  |  | $ | 91,226 |  |  | $ | 245,362 |  |  | $ | 178,492 |  |  |
Expenses |  |  |  |  |  |  |  |  |
Operating | 45,353 |  |  | 36,787 |  |  | 90,994 |  |  | 73,921 |  |  |
Transaction costs | 811 |  |  | — |  |  | 811 |  |  | 7 |  |  |
Depreciation and amortization | 43,293 |  |  | 33,627 |  |  | 87,957 |  |  | 67,730 |  |  |
Total expenses | 89,457 |  |  | 70,414 |  |  | 179,762 |  |  | 141,658 |  |  |
Other income (expense) |  |  |  |  |  |  |  |  |
Loss from early extinguishment of debt | — |  |  | — |  |  | (1,327) |  |  | — |  |  |
Interest expense | (32,219) |  |  | (25,636) |  |  | (62,592) |  |  | (51,192) |  |  |
Net income (loss) | $ | (805) |  |  | $ | (4,824) |  |  | $ | 1,681 |  |  | $ | (14,358) |  |  |
Company’s share of net income (loss) | $ | 1,082 |  |  | $ | (2,137) |  |  | $ | 4,476 |  |  | $ | (5,777) |  |  |
Gain on sale of investment (2) | — |  |  | — |  |  | — |  |  | 10,257 |  |  |
Basis differential (3) | (1,136) |  |  | 764 |  |  | (2,341) |  |  | (628) |  |  |
Income (loss) from unconsolidated joint ventures | $ | (54) |  |  | $ | (1,373) |  |  | $ | 2,135 |  |  | $ | 3,852 |  |  |
_______________ (1)Includes straight-line rent adjustments of approximately $17.8 million and $5.0 million for the three months ended June 30, 2022 and 2021, respectively, and approximately $45.3 million and $6.1 million for the six months ended June 30, 2022 and 2021, respectively. For the six months ended June 30, 2022, reinstatement of accrued rent balances totaled approximately $2.5 million. (2)During the six months ended June 30, 2021, the Company completed the sale of its 50% ownership interest in Annapolis Junction NFM LLC. The Company recognized a gain on sale of investment of approximately $10.3 million. (3)Includes straight-line rent adjustments of approximately $0.1 million for each of the three months ended June 30, 2022 and 2021, and approximately $0.2 million and $0.6 million for the six months ended June 30, 2022 and 2021, respectively. Also includes net above-/below-market rent adjustments of approximately $0.1 million for each of the three months ended June 30, 2022 and 2021, and approximately $0.2 million for each of the six months ended June 30, 2022 and 2021.

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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