Commitments and Contingent Liabilities - Additional Information (Detail) $ in Thousands		12 Months Ended
		Dec. 31, 2015 USD ($) Lot Contract	Dec. 31, 2014 USD ($) Lot	Dec. 31, 2013 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Rent expense under operating leases		$ 48,056	$ 45,508	$ 39,608
Maximum range of deposits required under the purchase agreements		10.00%
Term of business plan		5 years
Contingent forfeitable deposits with land developers		$ 94,200
Number of specific performance contracts | Contract		1
Finished lots committed to purchase under specific performance obligations | Lot		10	10
Purchase price of finished lots committed to purchase under specific performance obligations	[1]	$ 1,505	$ 1,505
Aggregate additional funding commitments related to raw land property development		19,200
Expected development credit offset amount		9,600
Contingent obligations under bonds or letters of credit arrangements		58,300
Contingent obligations under letters of credit arrangements		$ 11,900
Warranty reserve provision including accrual charges				31,600
Warranty accrual related to a single completed community				15,600
Warranty accrual for a non-recurring service issue				$ 16,000

[1] As of both December 31, 2015 and 2014, the Company was committed to purchase 10 finished lots under specific performance obligations.