Prepaid Expenses and Other Assets (Schedule Of Prepaid Expenses And Other Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Prepaid Expenses and Other Assets [Abstract]
Prepaid insurance	$ 20,226	$ 6,549
Lot option and escrow deposits	51,038	35,700
Performance deposits	4,552	3,295
Deferred financing costs revolving line of credit, net	4,155	1,795
Restricted cash	3,539	4,881
Secured notes receivable	4,947	2,753
Insurance receivable and other	50,260	5,839
Total prepaid expenses and other assets	$ 138,717	$ 60,812