Other assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred compensation plan	$ 53,529	$ 47,727
Deferred financing costs – unsecured senior line of credit	39,406	49,056
Deposits	28,618	21,768
Furniture, fixtures, equipment, and software	70,311	39,558
Net investment in leases	58,985	41,503
Notes receivable	258,033	120,546
Operating lease right-of-use assets	697,865	764,472
Other assets	87,036	96,690
Prepaid expenses	33,718	33,567
Property, plant, and equipment	130,263	141,275
Other assets	1,661,772	1,661,306
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Loss	(532)	(237)
Notes receivable	258,033	120,546
Accounts Receivable, Credit Loss Expense (Reversal)	295
Acquired-in-Place Leases
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Acquired in-place leases	204,008	305,144
Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, before Allowance for Credit Loss, Noncurrent	$ 18,089
Notes Receivable | San Diego
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	9.90%
Receivable with Imputed Interest, Due Date	Jan. 10, 2029
Financing Receivable, before Allowance for Credit Loss, Noncurrent	$ 240,476	103,427
Notes Receivable | Greater Boston
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	6.60%
Receivable with Imputed Interest, Due Date	Dec. 16, 2029
Financing Receivable, before Allowance for Credit Loss, Noncurrent		$ 17,356