Commitments and Contingencies Commitments and Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies [Abstract]
Letters of Credit and Completion Bonds	$ 355,000
Outstanding Performance and Maintenance Bonds	265,300
Performance letters of credit outstanding	74,000
Financial Letters of Credit	11,000
Financial Letters of Credit representing deposits on land and lot purchase agreements	10,600
Financial Bonds	4,700
Outstanding Deposits On Land and Lots	72,700
Land Purchase Deposits	52,918	$ 45,357
Prepaid Land Acquisition Costs	8,186	10,092
Short-term Non-bank Loans and Notes Payable	1,000
Unrecorded Conditional Purchase Obligation	816,100
Consolidated Inventory Not Owned	2,768	9,914
Obligation for consolidated inventory not owned	$ 2,768	$ 9,914