Accrued Expenses and Other Liabilities (Schedule Of Accrued Expenses And Other Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Accrued Expenses and Other Liabilities [Abstract]
Earnest money deposits	$ 15,086		$ 7,304
Warranty reserve	8,850	$ 3,057	2,479	$ 2,595	$ 2,754	$ 2,622
Accrued compensation costs	13,949		12,603
Land development and home construction accruals	66,119		31,486
Liability for product financing arrangement	21,893
Accrued interest	14,936		3,039
Income taxes payable			783
Other	16,872		4,620
Total accrued expenses and other liabilities	$ 157,705		$ 62,314