Subsequent Events (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2021 USD ($) apartmentCommunity apartmentUnit	Sep. 30, 2021 USD ($)
Subsequent Event [Line Items]
Contract purchase price		$ 48,000
Subsequent event | Forecast
Subsequent Event [Line Items]
Number of apartment communities | apartmentCommunity	2
Contract purchase price	$ 106,000
Number of apartment units acquired | apartmentUnit	490