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Real Estate Disposition Activities (Details) ft² in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) residential_condominium community home ft²	Jun. 30, 2022 USD ($) residential_condominium	Jun. 30, 2023 USD ($) residential_condominium community ft²	Jun. 30, 2022 USD ($) residential_condominium	Dec. 31, 2022 USD ($)
Summary of income from discontinued operations
Gain on sale of communities	$ 187,322	$ 404	$ 187,309	$ 149,204
Number of communities held for sale \| community	1		1
Number of residential condominium units sold \| residential_condominium	3	13	4	28
Other selling, general and administrative expense	$ 97	$ 538	$ 299	$ 1,304
Number of residential condominiums remaining to be sold \| residential_condominium	5		5
Aggregate carrying value of real estate	$ 15,336		$ 15,336		$ 32,532
eaves Daly City
Summary of income from discontinued operations
Number of apartment homes sold \| home	195
Proceeds from sale of real estate	$ 67,000
Gain on sale of communities	$ 54,618
Avalon at Newton Highlands
Summary of income from discontinued operations
Number of apartment homes sold \| home	294
Proceeds from sale of real estate	$ 170,000
Gain on sale of communities	132,723
The Park Loggia
Summary of income from discontinued operations
Proceeds from sale of real estate	$ 15,435	41,002	$ 19,342	81,338
Number of residential condominium units \| residential_condominium	172		172
Square feet of commercial space \| ft²	66		66
Gain on for-sale condominiums	$ 382	$ 467	$ 410	$ 1,469