Acquisitions, Dispositions and Mortgage Repayments - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			12 Months Ended
	Dec. 28, 2021	Dec. 01, 2021	Dec. 31, 2022	Dec. 31, 2021	Jul. 20, 2022
Business Acquisition [Line Items]
Building					$ 6,876,756
Land					992,701
Mortgage notes payable assumed, including fair value adjustments				$ (11,800)
Other assets acquired			$ 400	800	205,323
Accounts payable, accrued liabilities and other liabilities assumed			(2,900)	(5,600)
Total cash paid			399,200	561,500	$ 5,467,450
Financing lease receivable			7,400	16,300
Purchase price			5,576,463	8,900
Imputed lease arrangement			8,900	7,400
Medical Office Building
Business Acquisition [Line Items]
Purchase price			403,578	575,811
Medical Office Building | Columbus, OH
Business Acquisition [Line Items]
Purchase price	$ 9,525	$ 16,275
At-market lease intangibles
Business Acquisition [Line Items]
Intangibles			48,800	58,800
Above-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangibles			15,900	3,400
Below-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangibles			(2,200)	(1,400)
Above-market lease intangibles (lessee)
Business Acquisition [Line Items]
Intangibles				300
Below-market lease intangibles (lessee)
Business Acquisition [Line Items]
Intangibles			$ 1,200	$ 4,700
Intangible asset useful life			13 years 1 month 6 days	45 years 4 months 24 days
Building
Business Acquisition [Line Items]
Building			$ 250,700	$ 275,100
Investment in financing receivables, net
Business Acquisition [Line Items]
Investment in financing receivables, net				185,900
Financing lease right-of-use assets
Business Acquisition [Line Items]
Financing lease right of use assets 1				8,900
Land
Business Acquisition [Line Items]
Land			76,100	34,100
Land Improvements
Business Acquisition [Line Items]
Land Improvements			$ 11,200	$ 8,900
Minimum | At-market lease intangibles
Business Acquisition [Line Items]
Intangible asset useful life			1 year 6 months	2 years 7 months 6 days
Minimum | Above-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangible asset useful life			1 year 3 months 18 days	1 year 10 months 24 days
Minimum | Below-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangible asset useful life			1 year 3 months 18 days	3 years 1 month 6 days
Minimum | Above-market lease intangibles (lessee)
Business Acquisition [Line Items]
Intangible asset useful life				36 years 8 months 12 days
Minimum | Building
Business Acquisition [Line Items]
Asset estimated useful life			14 years	18 years
Minimum | Investment in financing receivables, net
Business Acquisition [Line Items]
Asset estimated useful life				6 months
Minimum | Financing lease right-of-use assets
Business Acquisition [Line Items]
Asset estimated useful life				15 years
Minimum | Land Improvements
Business Acquisition [Line Items]
Asset estimated useful life			5 years	6 years
Maximum | At-market lease intangibles
Business Acquisition [Line Items]
Intangible asset useful life			13 years 4 months 24 days	16 years 7 months 6 days
Maximum | Above-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangible asset useful life			15 years 7 months 6 days	8 years 1 month 6 days
Maximum | Below-market lease intangibles (lessor)
Business Acquisition [Line Items]
Intangible asset useful life			19 years 3 months 18 days	21 years 9 months 18 days
Maximum | Above-market lease intangibles (lessee)
Business Acquisition [Line Items]
Intangible asset useful life				64 years 6 months
Maximum | Building
Business Acquisition [Line Items]
Asset estimated useful life			38 years	44 years
Maximum | Investment in financing receivables, net
Business Acquisition [Line Items]
Asset estimated useful life				34 years
Maximum | Financing lease right-of-use assets
Business Acquisition [Line Items]
Asset estimated useful life				34 years
Maximum | Land Improvements
Business Acquisition [Line Items]
Asset estimated useful life			14 years	16 years