Income Taxes - Deferred Income Taxes on Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Other accrued expenses and contract land deposit reserve	$ 52,726	$ 51,316
Deferred compensation	4,635	4,693
Equity-based compensation expense	42,043	40,744
Inventory	10,530	9,242
Unrecognized tax benefit	12,355	13,587
Other	8,289	5,113
Total deferred tax assets	130,578	124,695
Less: Deferred tax liabilities	7,902	6,091
Net deferred tax asset	$ 122,676	$ 118,604