Segment Disclosures - Revenues and Assets by Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Segment Disclosure
Total assets	$ 15,698,850	$ 15,771,229
Assets held for sale, net	117,986	49,866
Operating segment
Segment Disclosure
Gross assets	18,059,469	17,588,155
Accumulated depreciation and amortization	(4,017,023)	(3,540,362)
Total assets	14,042,446	14,047,793
Operating segment | Lab
Segment Disclosure
Gross assets	9,313,395	9,019,271
Operating segment | Outpatient Medical
Segment Disclosure
Gross assets	6,376,191	6,291,986
Operating segment | CCRC
Segment Disclosure
Gross assets	2,369,883	2,276,898
Operating segment | Other Non-reportable
Segment Disclosure
Total assets	553,031	744,550
Other non-segment
Segment Disclosure
Total assets	$ 985,387	$ 929,020