Mortgages, Notes and Loans Payable, Net (Narrative) (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($) extension	Jun. 30, 2021 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2018 USD ($)
Mortgages, notes and loans payable
Land, buildings and equipment and developments in progress pledged as collateral	$ 9,533,000			$ 6,616,000
Repayments	292,635,000	$ 1,328,054,000
SID Bonds obligations assumed by buyers	3,932,000	$ 1,010,000
Asset Pledged as Collateral with Right
Mortgages, notes and loans payable
Land, buildings and equipment and developments in progress pledged as collateral	4,800,000,000
Term loan
Mortgages, notes and loans payable
Outstanding borrowings	242,200,000
Term loan | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Mortgages, notes and loans payable
Proceeds from sale of properties			$ 69,800,000
Special Improvement District bonds
Mortgages, notes and loans payable
SID Bonds obligations assumed by buyers	3,932,000
Special Improvement District bonds | Summerlin
Mortgages, notes and loans payable
Special improvement district bond issued	0
SID Bonds obligations assumed by buyers	$ 3,900,000
$700 Million loan due 2023
Mortgages, notes and loans payable
Face amount			700,000,000
Number of options to increase line of credit | extension	1
Option to increase borrowing capacity	$ 50,000,000
$700 Million loan due 2023 | Revolving Credit Facility
Mortgages, notes and loans payable
Face amount			85,000,000
$700 Million loan due 2023 | Term loan
Mortgages, notes and loans payable
Face amount			615,000,000		$ 615,000,000
$700 Million loan due 2023 | Line of credit | Revolving Credit Facility
Mortgages, notes and loans payable
Outstanding borrowings	$ 0
Term loan
Mortgages, notes and loans payable
Repayments			$ 181,800,000