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Inventory (Major Components Of Inventory) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Homes under construction $ 3,594,406 $ 3,086,740
Land under development 3,913,349 4,137,318
Raw land 467,456 497,740
Total Inventory $ 7,975,211 $ 7,721,798