Income Taxes - Deferred Income Taxes on Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Other accrued expenses and contract land deposit reserve	$ 77,781	$ 84,817
Deferred compensation	7,280	7,500
Equity-based compensation expense	45,361	46,257
Inventory	12,722	11,153
Unrecognized tax benefit	24,740	24,485
Other	9,391	5,847
Total deferred tax assets	177,275	180,059
Less: deferred tax liabilities	6,489	7,371
Net deferred tax position	$ 170,786	$ 172,688