Dispositions (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2021	Mar. 31, 2021	Mar. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of assets		$ 22,931	$ 0
Loss on early extinguishment of debt		(63)	0
The Saint Mary Construction Loan [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on early extinguishment of debt		(63)
The Saint Mary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of assets		(22,900)
Gain (Loss) on Disposition of Assets, Net of Noncontrolling Interests		16,200
Disposal Group, Held-for-sale, Not Discontinued Operations | The Saint Mary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Property Held-for-sale	$ 60,000
Proceeds from Sale of Property Held-for-sale, Net	34,000
Operating Leases, Income Statement, Lease Revenue		100	700
Interest Expense		$ 100	$ 300
Proceeds from Sale of Property Held-for-sale, Distributed to Noncontrolling Interests	12,900
Disposal Group, Held-for-sale, Not Discontinued Operations | The Saint Mary [Member] | Stratus Properties Inc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Property Held-for-sale, Net	$ 20,900