Commitments and Contingencies Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Commitments and Contingencies [Abstract]
Letters of Credit and Completion Bonds	$ 91,337
Outstanding Performance and Maintenance Bonds	62,218
Performance letters of credit outstanding	12,585
Financial Letters of Credit	13,248
Financial Letters of Credit representing deposits on land and lot purchase agreements	7,531
Financial Bonds	3,287
Unrecorded Conditional Purchase Obligation	$ 353,099