Income Taxes - Deferred Income Taxes on Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Other accrued expenses and contract land deposit reserve	$ 77,475	$ 83,744
Deferred compensation	10,923	10,939
Equity-based compensation expense	26,151	35,417
Inventory	10,914	6,622
Unrecognized tax benefit	22,295	25,594
Other	5,606	4,228
Total deferred tax assets	153,364	166,544
Less: deferred tax liabilities	1,702	2,128
Net deferred tax position	$ 151,662	$ 164,416