Investment in Real Estate Investment in Real Estate - Summary of Industrial Property Dispositions (Details) $ in Thousands, ft² in Millions		12 Months Ended
		Dec. 31, 2021 USD ($) ft² Property	Dec. 31, 2020 USD ($) ft² Property	Dec. 31, 2019 USD ($) ft² Property
Real Estate Properties [Line Items]
Number of industrial properties | Property		410
Gross leasable area (GLA) of industrial properties | ft²		61.4
Proceeds from sale of real estate	[1]	$ 243,407	$ 153,351	$ 315,768
Gain on sale of real estate	[1]	150,310	86,751	$ 124,942
Sales Type Lease
Real Estate Properties [Line Items]
Gross leasable area (GLA) of industrial properties | ft²				0.6
Sales-type Lease, Selling Profit (Loss)		0	0	$ 8,606
Sales-type Lease, Lease Receivable		$ 0	$ 0	$ 54,521
Disposition Activity
Real Estate Properties [Line Items]
Number of industrial properties | Property	[2]	29	29	40
Gross leasable area (GLA) of industrial properties | ft²		2.9	1.9	5.9
Partial Disposition Activity
Real Estate Properties [Line Items]
Number of industrial properties | Property		1

[1] (B) Gross proceeds and gain on sale of real estate include the sale of one land parcel for the year ended December 31, 2021 and several land parcels for the year ended December 31, 2019. In addition, included in the above table for the year ended December 31, 2019, is 0.6 million square feet of GLA, gross proceeds of $54,521 and gain on sale of $8,606 related to the reclassification of a lease from an operating lease to a sales-type lease that was recorded as a lease receivable as of December 31, 2019 and collected during 2020. See Note 10 for additional information.

[2] (A) Included as one industrial property for each of the years ended December 31, 2021, 2020 and 2019 is the sale of multiple industrial condominium units.