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Investments in real estate | 9 Months Ended
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Sep. 30, 2023
Real Estate [Abstract] |
Investments in real estate | Our consolidated investments in real estate, including real estate assets classified as held for sale as described in Note 15 – “Assets classified as held for sale” to our unaudited consolidated financial statements, consisted of the following as of September 30, 2023 and December 31, 2022 (in thousands):
|  | September 30, 2023 |  | December 31, 2022
Rental properties: |  |  |  |
Land (related to rental properties) |  | $ | 4,424,245 |  |  | $ | 4,284,731 |
Buildings and building improvements |  | 19,486,528 |  |  | 18,605,627 |
Other improvements |  | 3,137,310 |  |  | 2,677,763 |
Rental properties |  | 27,048,083 |  |  | 25,568,121 |
Development and redevelopment projects |  | 9,516,928 |  |  | 8,715,335 |
Gross investments in real estate – North America |  | 36,565,011 |  |  | 34,283,456 |
Less: accumulated depreciation – North America |  | (4,852,280) |  |  | (4,349,780) |
Net investments in real estate – North America |  | 31,712,731 |  |  | 29,933,676 |
Net investments in real estate – Asia |  | — |  |  | 11,764 |
Investments in real estate |  | $ | 31,712,731 |  |  | $ | 29,945,440 |
Acquisitions Our real estate asset acquisitions during the nine months ended September 30, 2023 consisted of the following (dollars in thousands):
|  |  |  | Square Footage |  |  |
Market |  | Number of Properties |  | Future Development |  | Active Development/Redevelopment |  | Operating With Future Development/Redevelopment |  |  |  | Purchase Price(1) |
Canada |  | 1 |  | — |  |  | — |  |  | 247,743 |  |  |  |  | $ | 100,837 |  |
Other |  | 2 |  | 715,000 |  |  | 110,717 |  |  | 10,000 |  |  |  |  | 71,103 |  |
Three months ended March 31, 2023 |  | 3 |  | 715,000 |  |  | 110,717 |  |  | 257,743 |  |  |  |  | 171,940 |  |
Other |  | — |  | 374,349 |  |  | — |  |  | — |  |  |  |  | 54,000 |  |
Three months ended June 30, 2023 |  | — |  | 374,349 |  |  | — |  |  | — |  |  |  |  | 54,000 |  |
Other |  | 2 |  | — |  |  | — |  |  | 175,676 |  |  |  |  | 25,036 |  |
Three months ended September 30, 2023 |  | 2 |  | — |  |  | — |  |  | 175,676 |  |  |  |  | 25,036 |  |
Nine months ended September 30, 2023 |  | 5 |  | 1,089,349 |  |  | 110,717 |  |  | 433,419 |  |  |  |  | $ | 250,976 |  | (1)
(1)Represents the aggregate contractual purchase price of our acquisitions, which differs from purchases of real estate in our unaudited consolidated statements of cash flows due to the timing of payment, closing costs, and other acquisition adjustments such as prorations of rents and expenses. Based upon our evaluation of each acquisition, we determined that substantially all of the fair value related to each acquisition was concentrated in a single identifiable asset or a group of similar identifiable assets or was associated with a land parcel with no operations. Accordingly, each transaction did not meet the definition of a business and therefore was accounted for as an asset acquisition. In each of these transactions, we allocated the total consideration for each acquisition to the individual assets and liabilities acquired on a relative fair value basis. During the nine months ended September 30, 2023, we acquired five properties for an aggregate purchase price of $251.0 million. In connection with our acquisitions, we recorded in-place lease assets aggregating $15.3 million and below-market lease liabilities in which we are the lessor aggregating $5.8 million. As of September 30, 2023, the weighted-average amortization period remaining on our in-place leases and below-market leases acquired during the nine months ended September 30, 2023 was 3.5 years and 2.3 years, respectively, and 3.2 years in total. Sales of real estate assets and impairment charges Our completed dispositions of and sales of partial interests in real estate assets during the nine months ended September 30, 2023 consisted of the following (dollars in thousands):
|  |  |  |  |  |  |  |  |  |  |  | Gain on Sales of Real Estate |  | Consideration Above/(Below) Book Value(1)
Property |  | Submarket/Market |  | Date of Sale |  | Interest Sold |  | RSF |  | Sales Price |  |
Partial interest sales(2): |  |  |  |  |  |  |  |  |  |  |  |  |  |
9625 Towne Centre Drive |  | University Town Center/ San Diego |  | 6/21/23 |  | 20.1 | % |  | 163,648 |  |  | $ | 32,261 |  |  | N/A |  | $ | 15,553 |
15 Necco Street |  | Seaport Innovation District/Greater Boston |  | 4/11/23 |  | 18 | % |  | 345,995 |  |  | 66,108 |  |  | N/A |  | (7,761) |
|  |  |  |  |  |  |  |  |  | 98,369 |  |  |  |  | $ | 7,792 |
Dispositions of real estate: |  |  |  |  |  |  |  |  |  |  |  |  |  |
225, 231, 266, and 275 Second Avenue and 780 and 790 Memorial Drive |  | Route 128 and Cambridge/Inner Suburbs/Greater Boston |  | 6/13/23 |  | 100 | % |  | 428,663 |  |  | 365,226 |  |  | $ | 187,225 |  |  |
11119 North Torrey Pines Road |  | Torrey Pines/San Diego |  | 5/4/23 |  | 100 | % |  | 72,506 |  |  | 86,000 |  |  | 27,585 |  |  |
|  |  |  |  |  |  |  |  |  | 451,226 |  |  | $ | 214,810 |  |  |
421 Park Drive(3) |  | Fenway/Greater Boston |  | 9/19/23 |  | (3) |  | (3) |  | 174,412 |  |  | $ | — |  |  |
275 Grove Street |  | Route 128/Greater Boston |  | 6/27/23 |  | 100 | % |  | 509,702 |  |  | 109,349 |  |  | (4) |  |
Other |  |  |  |  |  |  |  |  |  | 42,092 |  |  | $ | — |  |  |
|  |  |  |  |  |  |  |  |  | $ | 875,448 |  | (5) |  |  |
(1)Related to sales of partial interests in real estate assets over which we retained control and therefore continue to consolidate. We recognized the difference between the consideration received and the book value of partial interests sold in additional paid-in capital, with no gain or loss recognized in earnings. (2)Refer to the “Sales of partial interests” section in Note 4 – “Consolidated and unconsolidated real estate joint ventures” to our unaudited consolidated financial statements for additional information. (3)Represents the disposition of 268,023 RSF in a 660,034 RSF near-term development at 421 Park Drive. The proceeds from this transaction will help fund the construction of our remaining 392,011 RSF of the project. The buyer will fund the remaining costs to construct its 268,023 RSF, and these costs are not included in our projected construction spending. We will develop and operate the completed project and will earn development fees over the next three years. (4)Refer to the “Impairment charges” section below for information related to impairment charges recognized in connection with this transaction. (5)Represents the aggregate contractual sales price of our sales, which differs from proceeds from sales of real estate and contributions from and sales of noncontrolling interests in our consolidated statements of cash flows under “Investing activities” and “Financing activities,” respectively, primarily due to the timing of payment, closing costs, and other sales adjustments such as prorations of rents and expenses. Impairment charges During the nine months ended September 30, 2023, we recognized impairment charges aggregating $189.2 million primarily consisting of the following: In January 2020, we acquired a three-building office campus aggregating 509,702 RSF at 275 Grove Street in our Route 128 submarket. At the time of our acquisition, the campus was fully occupied with a weighted-average remaining lease term of 6.1 years. We had intended to convert the campus into laboratory space through redevelopment upon the expiration of the acquired in-place leases. Since our acquisition, the macroeconomic environment and demand for office space have deteriorated considerably. In April 2023, upon meeting the criteria for classification as held for sale, we recognized a real estate impairment charge aggregating $138.9 million to reduce our investment in this campus to its estimated fair value less costs to sell. In June 2023, we recognized an additional impairment adjustment of $6.5 million to reduce the carrying amount of this asset to its updated fair value less costs to sell. These impairment charges aggregating $145.4 million were classified in impairment of real estate in our consolidated statement of operations. We completed the sale in June 2023 with no gain or loss recognized in earnings. During the three months ended June 30, 2023, we recognized a real estate impairment charge aggregating $17.1 million to fully write down the carrying amount of our one remaining property in Asia. During the three months ended September 30, 2023, we recognized real estate impairment charges aggregating $20.6 million to further reduce the carrying amounts of primarily three non-laboratory properties classified as held for sale aggregating 230,704 RSF, located in our Greater Boston and Texas markets, to their respective estimated fair values less costs to sell. These assets represent non-core properties that are not integral to our mega campus strategy. Refer to Note 15 – “Assets classified as held for sale” to our unaudited consolidated financial statements for additional information.

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- Definition The entire disclosure for certain real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 976 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//976/tableOfContent Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 978 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//978/tableOfContent Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 970 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//970/tableOfContent Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 972 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//972/tableOfContent Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 974 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//974/tableOfContent + Details
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