Real Estate and Other Activities - Development Activities - Summary of Status on Current Development Projects (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Business Acquisition [Line Items]
Commitment	$ 381,524
Costs Incurred as of June 30, 2022	149,558
Steward [Member] | Texas [Member]
Business Acquisition [Line Items]
Commitment	169,408
Costs Incurred as of June 30, 2022	$ 57,405
Estimated Rent Commencement Date	2Q 2024
IMED [Member] | Spain [Member]
Business Acquisition [Line Items]
Commitment	$ 49,371
Costs Incurred as of June 30, 2022	$ 12,542
Estimated Rent Commencement Date	2Q 2023
Ernest [Member] | California [Member]
Business Acquisition [Line Items]
Commitment	$ 47,700
Costs Incurred as of June 30, 2022	$ 42,073
Estimated Rent Commencement Date	3Q 2022
IMED [Member] | Spain [Member]
Business Acquisition [Line Items]
Commitment	$ 44,470
Costs Incurred as of June 30, 2022	$ 29,538
Estimated Rent Commencement Date	3Q 2023
IMED [Member] | Spain [Member]
Business Acquisition [Line Items]
Commitment	$ 35,975
Costs Incurred as of June 30, 2022	$ 8,000
Estimated Rent Commencement Date	3Q 2024
Springstone [Member] | Texas [Member]
Business Acquisition [Line Items]
Commitment	$ 34,600
Estimated Rent Commencement Date	1Q 2024