Accrued Expenses and Other Liabilities (Schedule Of Accrued Expenses And Other Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accrued Expenses and Other Liabilities [Abstract]
Earnest money deposits	$ 30,578	$ 10,592
Warranty reserve	13,824	9,731	$ 7,970	$ 8,531
Accrued compensation costs	60,692	30,888
Land development and home construction accruals	80,088	110,284
Liability for product financing arrangements	$ 62,084	$ 3,848
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities
Accrued interest	$ 13,649	$ 14,562
Lease liabilities - operating leases	16,801	19,306
Income taxes payable	3,118	329
Derivative liability	3,807	147
Other accrued liabilities	18,110	14,288
Total accrued expenses and other liabilities	$ 302,751	$ 213,975