Accrued Expenses and Other Liabilities (Schedule Of Accrued Expenses And Other Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Accrued Expenses and Other Liabilities [Abstract]
Earnest money deposits	$ 25,721		$ 10,592
Warranty reserve	12,890	$ 11,221	9,731	$ 9,990	$ 9,768	$ 7,970
Accrued compensation costs	39,713		30,888
Land development and home construction accruals	149,842		110,284
Accrued interest	16,211		19,306
Lease liabilities - operating leases	17,155		14,562
Income taxes payable			329
Other accrued liabilities	27,142		18,283
Total accrued expenses and other liabilities	$ 288,674		$ 213,975