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Subsequent events
 9 Months Ended
Sep. 30, 2023
Subsequent Events [Abstract]  
Subsequent Events SUBSEQUENT EVENTIn October 2023, we recognized a real estate impairment charge of approximately $90.8 million to reduce the carrying amounts of two non-laboratory properties located in our Greater Boston market to their current fair values, less costs to sell. We initially acquired these industrial and self-storage properties with an intention to entitle the site as a life science campus, demolish the properties upon expiration of the existing in-place leases, and ultimately develop life science properties. Since our acquisition, the macroeconomic environment has changed. Upon our reevaluation of the project’s financial outlook and its alignment with our mega campus strategy, we decided not to proceed with this project. The impairment charge was recognized upon meeting the criteria for classification as held for sale. We expect to complete the sale of these properties during the three months ending December 31, 2023.