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Related Party Transactions - Additional Information (Details) - USD ($)
3 Months Ended
May 13, 2013
Mar. 31, 2019
Mar. 31, 2018
Construction Contracts      
Related Party Transactions      
Revenue from contracts with affiliated entities   $ 0 $ 1,200,000
Gross profit from related parties   0 200,000
Real Estate Service Fees      
Related Party Transactions      
Revenue from contracts with affiliated entities   0 0
Cost Reimbursements      
Related Party Transactions      
Revenue from contracts with affiliated entities   $ 0 $ 0
Tax Protection Agreements | Operating Partnership      
Related Party Transactions      
Future sale period for properties 7 years    
Future sale period for properties in limited number of cases 10 years