Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($) Property ApartmentUnit Agreement	Jun. 30, 2021 USD ($) Property ApartmentUnit Agreement
Commitments And Contingencies [Abstract]
Projects in various stages of development | Property	2	2
Partially owned projects in lease-up | Property		1
Units in various stages of development | ApartmentUnit	624	624
Consolidated project under development commitment fund | $	$ 60.5	$ 60.5
Various stages of development with estimated completion dates ranging through December 31, 2021		Dec. 31, 2021
Number of joint venture agreement | Agreement		2
Number of joint venture agreement completed | Agreement	1