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Accounts payable, accrued expenses, and other liabilities (Tables)
9 Months Ended
Sep. 30, 2024
Accounts Payable and Accrued Liabilities [Abstract]  
Schedule of accounts payable and accrued liabilities The following table summarizes the components of accounts payable, accrued expenses, and other liabilities as of
September 30, 2024 and December 31, 2023 (in thousands):
September 30, 2024
December 31, 2023
Accounts payable and accrued expenses
$469,970
$524,439
Accrued construction
586,074
606,333
Acquired below-market leases
249,053
322,040
Conditional asset retirement obligations
54,392
53,083
Deferred rent liabilities
12,029
15,183
Operating lease liability
648,338
(1)
382,883
Unearned rent and tenant security deposits
651,814
548,529
Other liabilities
194,216
158,453
Total
$2,865,886
$2,610,943
(1)Includes ground lease liability related to an amendment executed in July 2024 to our existing ground lease agreement at the Alexandria Technology Square® mega
campus. For additional information, refer to “Leases in which we are the lessee” in Note 5 – “Leases” to our unaudited consolidated financial statements.