Detail of secured and unsecured senior debt (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 26, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Feb. 13, 2025
Debt Instrument [Line Items]
Effective rate (as a percent)		3.91%
Loss on early extinguishment of debt		$ (107)	$ 0	$ 0
Future principal payments due on secured and unsecured debt
Total Consolidated		$ 12,400,555
Unsecured Debt
Debt Instrument [Line Items]
Effective rate (as a percent)		3.91%
Future principal payments due on secured and unsecured debt
2026		$ 650,000
2027		350,000
2028		425,000
2029		700,000
2030		1,503,500
Thereafter		8,850,000
Outstanding Balance		12,478,500
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(77,945)
Total Consolidated		12,400,555
Unsecured senior line of credit
Future principal payments due on secured and unsecured debt
Total Consolidated		$ 0
4.30% unsecured senior notes payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.30%
Effective rate (as a percent)		4.50%
Maturity date		Jan. 15, 2026
Future principal payments due on secured and unsecured debt
2026		$ 300,000
2027		0
2028		0
2029		0
2030		0
Thereafter		0
Outstanding Balance		300,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(36)
Total Consolidated		$ 299,964
4.30% unsecured senior notes payable | Subsequent Event
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.30%
Loss on early extinguishment of debt	$ 0
Future principal payments due on secured and unsecured debt
Outstanding Balance	$ 300,000
3.80% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.80%
Effective rate (as a percent)		3.96%
Maturity date		Apr. 15, 2026
Future principal payments due on secured and unsecured debt
2026		$ 350,000
2027		0
2028		0
2029		0
2030		0
Thereafter		0
Outstanding Balance		350,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(162)
Total Consolidated		$ 349,838
3.95% unsecured senior notes payable due in 2027
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.95%
Effective rate (as a percent)		4.13%
Maturity date		Jan. 15, 2027
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		350,000
2028		0
2029		0
2030		0
Thereafter		0
Outstanding Balance		350,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(555)
Total Consolidated		$ 349,445
3.95% unsecured senior notes payable due in 2028
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.95%
Effective rate (as a percent)		4.07%
Maturity date		Jan. 15, 2028
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		425,000
2029		0
2030		0
Thereafter		0
Outstanding Balance		425,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(888)
Total Consolidated		$ 424,112
4.50% unsecured senior notes payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.50%
Effective rate (as a percent)		4.60%
Maturity date		Jul. 30, 2029
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		300,000
2030		0
Thereafter		0
Outstanding Balance		300,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(805)
Total Consolidated		$ 299,195
2.75% Unsecured Senior Notes Payable Due 2029
Debt Instrument [Line Items]
Stated interest rate (as a percent)		2.75%
Effective rate (as a percent)		2.87%
Maturity date		Dec. 15, 2029
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		400,000
2030		0
Thereafter		0
Outstanding Balance		400,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(1,655)
Total Consolidated		$ 398,345
4.70% unsecured senior note payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.70%
Effective rate (as a percent)		4.81%
Maturity date		Jul. 01, 2030
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		450,000
Thereafter		0
Outstanding Balance		450,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(1,686)
Total Consolidated		$ 448,314
4.90% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.90%
Effective rate (as a percent)		5.05%
Maturity date		Dec. 15, 2030
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		700,000
Thereafter		0
Outstanding Balance		700,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(3,947)
Total Consolidated		$ 696,053
3.375% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.375%
Effective rate (as a percent)		3.48%
Maturity date		Aug. 15, 2031
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		750,000
Outstanding Balance		750,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(3,704)
Total Consolidated		$ 746,296
2.00% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		2.00%
Effective rate (as a percent)		2.12%
Maturity date		May 18, 2032
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		900,000
Outstanding Balance		900,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(6,043)
Total Consolidated		$ 893,957
1.875% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		1.875%
Effective rate (as a percent)		1.97%
Maturity date		Feb. 01, 2033
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		1,000,000
Outstanding Balance		1,000,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(6,240)
Total Consolidated		$ 993,760
2.95% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		2.95%
Effective rate (as a percent)		3.07%
Maturity date		Mar. 15, 2034
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		800,000
Outstanding Balance		800,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(6,477)
Total Consolidated		$ 793,523
4.75% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.75%
Effective rate (as a percent)		4.88%
Maturity date		Apr. 15, 2035
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		500,000
Outstanding Balance		500,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(4,500)
Total Consolidated		$ 495,500
5.50% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.50%
Effective rate (as a percent)		5.66%
Maturity date		Oct. 01, 2035
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		550,000
Outstanding Balance		550,000			$ 550,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(6,316)
Total Consolidated		$ 543,684
5.25% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.25%
Effective rate (as a percent)		5.38%
Maturity date		May 15, 2036
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		400,000
Outstanding Balance		400,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(3,767)
Total Consolidated		$ 396,233
4.85% Unsecured Senior Note Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.85%
Effective rate (as a percent)		4.93%
Maturity date		Apr. 15, 2049
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		300,000
Outstanding Balance		300,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(2,756)
Total Consolidated		$ 297,244
4.00% Unsecured Senior Notes Payables Due 2050
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.00%
Effective rate (as a percent)		3.91%
Maturity date		Feb. 01, 2050
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		700,000
Outstanding Balance		700,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		9,844
Total Consolidated		$ 709,844
3.00% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.00%
Effective rate (as a percent)		3.08%
Maturity date		May 18, 2051
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		850,000
Outstanding Balance		850,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(10,842)
Total Consolidated		$ 839,158
3.55% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.55%
Effective rate (as a percent)		3.63%
Maturity date		Mar. 15, 2052
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		1,000,000
Outstanding Balance		1,000,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(13,228)
Total Consolidated		$ 986,772
5.15% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.15%
Effective rate (as a percent)		5.26%
Maturity date		Apr. 15, 2053
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		500,000
Outstanding Balance		500,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(7,373)
Total Consolidated		$ 492,627
5.625% Unsecured Senior Notes Payable
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.625%
Effective rate (as a percent)		5.71%
Maturity date		May 15, 2054
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		0
Thereafter		600,000
Outstanding Balance		600,000
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(6,470)
Total Consolidated		593,530
Commercial paper program
Future principal payments due on secured and unsecured debt
Outstanding Balance		$ 353,200
Commercial paper program | Unsecured senior line of credit
Debt Instrument [Line Items]
Effective rate (as a percent)		4.33%
Maturity date		Jan. 22, 2030
Future principal payments due on secured and unsecured debt
2026		$ 0
2027		0
2028		0
2029		0
2030		353,500
Thereafter		0
Outstanding Balance		353,500
Unamortized Discount (Premium) and Debt Issuance Costs, Net		(339)
Total Consolidated		$ 353,161