Dispositions of Real Estate and Discontinued Operations - 2022 Dispositions of Real Estate (Details) $ in Thousands	1 Months Ended			3 Months Ended	12 Months Ended
	Jan. 31, 2023 USD ($) property	Jul. 31, 2022 USD ($) property	Jan. 31, 2022 USD ($) property	Jun. 30, 2022 USD ($) property	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net					$ 9,078	$ 190,590	$ 90,350
Life Science
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property			1
Proceeds from sale of buildings			$ 14,000
Gain (loss) on sales of real estate, net			$ 4,000
Life Science | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property	2
Medical Office
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property		2		3
Proceeds from sale of buildings		$ 9,000		$ 27,000
Gain (loss) on sales of real estate, net		$ 1,000		$ 10,000
Medical Office | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sales of real estate, net	$ 113,000