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Acquisitions - Additional Information (Detail)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 28, 2021
USD ($)
Sep. 30, 2021
USD ($)
a
ft²
Number
Sep. 30, 2021
USD ($)
a
ft²
Land
Number
Business Acquisition [Line Items]      
Payments to acquire business   $ 40,000.0 $ 19.3
Number of town homes | Number   58,000,000 58,000,000
Land Parcels Adjacent | Land     8
Square Feet | ft²   1,411 1,411
The Eldridge Townhomes [Member]      
Business Acquisition [Line Items]      
Payments to acquire business   $ 40.0  
Number of town homes | Number   58 58
Area of land | a   3.6 3.6
The Benson Hotel and Faculty Club Development [Member]      
Business Acquisition [Line Items]      
Payments to acquire business $ 6.2    
Construction liabilities outstanding $ 0.9