Real Estate and Other Activities - 2020 Activity - Summary of Status on Current Development Projects (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($)
Business Acquisition [Line Items]
Commitment	$ 95,629
Costs Incurred as of March 31, 2021	42,041
Ernest Health Inc [Member] \| Bakersfield, California [Member]
Business Acquisition [Line Items]
Commitment	47,929
Costs Incurred as of March 31, 2021	$ 28,502
Estimated Rent Commencement Date	4Q 2021
Ernest Health Inc [Member] \| Stockton, California [Member]
Business Acquisition [Line Items]
Commitment	$ 47,700
Costs Incurred as of March 31, 2021	$ 13,539
Estimated Rent Commencement Date	1Q 2022

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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