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Variable Interest Entities ("VIEs") (Tables)
9 Months Ended
Sep. 30, 2021
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure [Abstract]  
Total Risk of Loss Related to Contract Land Deposits Our total risk of loss related to contract land deposits is limited to the amount of the deposits pursuant to the liquidated damages provision of the LPAs. As of September 30, 2021 and December 31, 2020, our total risk of loss was as follows:
September 30, 2021December 31, 2020
Contract land deposits$487,959 $439,833 
Loss reserve on contract land deposits(34,704)(52,205)
Contract land deposits, net453,255 387,628 
Contingent obligations in the form of letters of credit10,755 8,249 
Total risk of loss$464,010 $395,877