Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Deferred tax assets:
Other accrued expenses and contract land deposit reserve	$ 83,744	$ 96,459
Deferred compensation	10,939	11,642
Equity-based compensation expense	35,417	49,469
Inventory	6,622	5,495
Unrecognized tax benefit	25,594	24,514
Other	4,228	5,856
Total deferred tax assets	166,544	193,435
Less: deferred tax liabilities	2,128	948
Net deferred tax position	$ 164,416	$ 192,487