Dispositions of Real Estate (Details) $ in Thousands	1 Months Ended			12 Months Ended
	Jan. 31, 2026 USD ($) property	Nov. 30, 2024 USD ($) property	Jul. 31, 2024 USD ($) property	Dec. 31, 2025 USD ($) property	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($) property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net				$ 69,488	$ 178,695	$ 86,463
Assets held for sale				80,621	7,840
Right-of-use asset				412,198	424,173
Lease liability				296,260	307,220
Deferred revenue				985,307	940,136
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale				81,000	8,000
Real estate held for development and sale, net				73,000
Right-of-use asset				7,000
Liabilities related to assets held for sale, net				12,000	0
Lease liability				9,000
Deferred revenue				3,000
Dispositions of 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net				$ 72,000
Dispositions of 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net					$ 179,000
Dispositions of 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net						$ 81,000
Lab
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property					7	2
Proceeds from sale of buildings					$ 180,000	$ 113,000
Lab | Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties classified as held for sale | property				6
Lab | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property	4
Proceeds from sale of buildings	$ 68,000
Outpatient Medical Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property			59		59
Proceeds from sale of buildings			$ 674,000		$ 674,000
Investments in loans receivable			$ 405,000		$ 405,000
Outpatient Medical Buildings | Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties classified as held for sale | property				2
Land Parcel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property				1
Proceeds from sale of buildings				$ 4,000
Nine Outpatient Medical Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property				9
Proceeds from sale of buildings				$ 160,000
Sixteen Outpatient Medical Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property				16
Proceeds from sale of buildings				$ 182,000
Fourteen Outpatient Medical Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property					14
Proceeds from sale of buildings					$ 220,000
Two Outpatient Medical Buildings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property		2
Proceeds from sale of buildings		$ 23,000
Investments in loans receivable		$ 14,000
Senior housing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of buildings					$ 12,000
Outpatient Medical
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of assets sold | property						2
Proceeds from sale of buildings						$ 32,000
Outpatient Medical | Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties classified as held for sale | property					1