Variable Interest Entities - Total Risk Related to Lot Options (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Contract land deposits	$ 309,677	$ 296,646
Loss reserve on contract land deposits	(55,869)	(59,761)
Contract land deposits, net	253,808	236,885
Contingent obligations in the form of letters of credit	6,427	2,459
Contingent specific performance obligations	1,505	1,707
Total risk of loss	$ 261,740	$ 241,051