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Related-Party Transactions (Details) - USD ($)		12 Months Ended
	Jun. 28, 2022	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2015	May 06, 2025	Jan. 23, 2025	Jan. 17, 2025
Related-Party Transactions
Operating expenses		$ 519,450,000	$ 515,327,000	$ 450,627,000
Partnership received amount		12,503,000	19,052,000	2,075,000
Information on related party transaction
Receivables from related parties		2,627,000	6,250,000
Entity aggregate amount		83,885,000	83,559,000	86,763,000
Spring Partners Retail LLC
Related-Party Transactions
Partnership received amount		2,700,000	3,400,000	1,700,000
BIG GRP 275 Grove JV LLC | Office space leases
Information on related party transaction
Lease term								12 years
Revere Ma Owner LLC
Information on related party transaction
Gross proceeds	$ 150,000,000
Accrued Expenses and Other Current Liabilities | Revere Ma Owner LLC
Information on related party transaction
Accrued interest expenses and other current liabilities		0	21,500,000
Leases of Real property
Information on related party transaction
Entity aggregate amount		200,000	200,000
General Partner
Related-Party Transactions
Operating expenses		245,400,000	219,400,000	168,500,000
Information on related party transaction
Receivables from related parties		$ 2,545,000	5,156,000
Executive officers | Leases of Real property
Information on related party transaction
PercentageOfInterestHeldInLessorEntity		20
Spring Partners Retail LLC
Related-Party Transactions
Reimbursement of direct expenses		$ 13,600,000	17,100,000	$ 9,400,000
Information on related party transaction
Receivables from related parties		$ 82,000	$ 1,094,000
Slifka Family
Related-Party Transactions
Ownership interest, as a percent		100.00%
Annual services fee		$ 20,000
Notice period to terminate the receipt of services under the agreement		90 days
Information on related party transaction
Percentage of net proceeds						50.00%
Slifka Family | Revere Ma Owner LLC
Information on related party transaction
Receivables from related parties							$ 700,000
Gross proceeds					$ 44,300,000
Productive asset settlement amount paid									$ 22,100,000
Global GP LLC | Related-Party | Affiliates of Slifka family
Related-Party Transactions
Limited partner ownership interest (as a percent)		100.00%

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