Real Estate - Construction, Tenant, and Other Capital Improvements (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Real estate acquisitions [Line Items]
Funding for construction, tenant and other capital improvements	$ 961,994	$ 759,720	$ 788,895
Life Science
Real estate acquisitions [Line Items]
Funding for construction, tenant and other capital improvements	658,542	472,301	573,999
Medical Office
Real estate acquisitions [Line Items]
Funding for construction, tenant and other capital improvements	237,761	230,227	173,672
CCRC
Real estate acquisitions [Line Items]
Funding for construction, tenant and other capital improvements	$ 65,691	$ 57,192	$ 41,224

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9212-128498

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9215-128498

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=127000608&loc=d3e9135-128495

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