Organization, Basis of Presentation, and Significant Accounting Policies - Casualty and Impairment of Long-Lived Assets and Assets Held for Sale and Discontinued Operations (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) community	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets held-for-use	$ 0	$ 0	$ 0
Casualty and impairment loss	2,935,000	9,118,000	0
Impairment of real estate and land	2,935,000	9,118,000	0
Impairment of investment in unconsolidated entities	$ 0	0	0
Number of communities held for sale | community	1
Land
Property, Plant and Equipment [Line Items]
Casualty and impairment loss	$ 0	0	0
Impairment of real estate and land	0	0	$ 0
Northeast and California Regions | Severe Weather
Property, Plant and Equipment [Line Items]
Casualty and impairment loss		9,118,000
Impairment of real estate and land		$ 9,118,000
California and Metro NY/NJ regions | Severe Weather and Fire
Property, Plant and Equipment [Line Items]
Casualty and impairment loss	2,935,000
Impairment of real estate and land	$ 2,935,000