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Real Estate - Construction, Tenant, and Other Capital Improvements (Details) - USD ($) $ in Thousands | 12 Months Ended
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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

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