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Commitments and Contingencies
 3 Months Ended
Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
General

As of March 31, 2025, we had commitments of approximately $155.8 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating and development and redevelopment properties.

Environmental Matters and Asset Retirement Obligations

As of March 31, 2025 and December 31, 2024, we had the following accrued environmental remediation liabilities in connection with certain of our in-process and future development projects, and the following asset retirement obligations associated with certain of our stabilized portfolio properties and in-process and future development projects:

March 31, 2025December 31, 2024
(in thousands)
Environmental liabilities$71,127 $72,003 
Asset retirement obligations$4,689 $4,634