Revenues (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Rental revenue	$ 85,899	$ 92,744
Total revenues	190,580	175,175
Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	81,438	47,534
Operating Assets revenues
Disaggregation of Revenue [Line Items]
Total revenues	96,439	114,257
Master Planned Communities revenues
Disaggregation of Revenue [Line Items]
Total revenues	48,287	50,446
Seaport revenues
Disaggregation of Revenue [Line Items]
Total revenues	7,453	9,694
Strategic Developments revenues
Disaggregation of Revenue [Line Items]
Total revenues	38,300	760
Corporate revenues
Disaggregation of Revenue [Line Items]
Total revenues	101	18
Condominium rights and unit sales
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	37,167	43
Condominium rights and unit sales | Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	37,167	43
Master Planned Communities land sales
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	37,477	39,732
Master Planned Communities land sales | Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	37,477	39,732
Builder price participation
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	6,794	7,759
Builder price participation | Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	6,794	7,759
Other land, rental and property revenues
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	23,243	34,897
Other land, rental and property revenues | Recognized at a point in time and/or over time
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 23,243	$ 34,897