Investments - Schedule of Details of Properties Acquired (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2021 USD ($) ft² Property Transaction Unit	Dec. 31, 2020 USD ($) ft² Property Transaction Unit
Real Estate Properties [Line Items]
Number of Transactions | Transaction		28	12
Number of Properties | Property		244	73
Purchase Price | $	[1]	$ 13,039,965	$ 2,980,905
Multifamily
Real Estate Properties [Line Items]
Number of Transactions | Transaction		15	7
Number of Properties | Property		151	60
Sq. Ft. (in millions)/Units | Unit		37,779	10,785
Purchase Price | $	[1]	$ 9,342,279	$ 1,710,631
Single-Family Rental Units
Real Estate Properties [Line Items]
Number of Transactions | Transaction		2
Sq. Ft. (in millions)/Units | Unit		2,595
Purchase Price | $	[1]	$ 1,128,276
Industrial Assets
Real Estate Properties [Line Items]
Number of Transactions | Transaction		5	2
Number of Properties | Property		60	10
Purchase Price | $	[1]	$ 1,560,968	$ 229,606
Sq. Ft. (in millions)/Units | ft²		10,380,000	1,730,000
Office Buildings
Real Estate Properties [Line Items]
Number of Transactions | Transaction		2	2
Number of Properties | Property		5	2
Purchase Price | $	[1]	$ 370,846	$ 878,456
Sq. Ft. (in millions)/Units | ft²		700,000	1,270,000
Self-Storage Properties
Real Estate Properties [Line Items]
Number of Transactions | Transaction		1
Number of Properties | Property		25
Sq. Ft. (in millions)/Units | Unit		13,554
Purchase Price | $	[1]	$ 322,228
Other Property
Real Estate Properties [Line Items]
Number of Transactions | Transaction		3
Number of Properties | Property		3
Purchase Price | $	[1]	$ 315,368
Sq. Ft. (in millions)/Units | ft²		750,000
Medical Office Building
Real Estate Properties [Line Items]
Number of Transactions | Transaction			1
Number of Properties | Property			1
Purchase Price | $	[1]		$ 162,212
Sq. Ft. (in millions)/Units | ft²			290,000

[1] Purchase price is inclusive of acquisition-related costs.