Real Estate (Dispositions) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Property	Dec. 31, 2020 USD ($) Property	Dec. 31, 2019 USD ($) Property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain | $	$ 23,094	$ 16,238	$ 32,463
Assets Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold at a gain | Property	74	38	59