Inventories - Inventory Impairments (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Inventory [Line Items]
Inventory Impairments	$ 28,415	$ 660		$ 29,075	$ 0
Homebuilding:
Inventory [Line Items]
Inventory Impairments	28,415		$ 0	29,075	0
Homebuilding: | Housing Completed or Under Construction
Inventory [Line Items]
Inventory Impairments	28,415		0	29,075	0
Homebuilding: | West | Housing Completed or Under Construction
Inventory [Line Items]
Inventory Impairments	25,900		0	26,560	0
Homebuilding: | Mountain | Housing Completed or Under Construction
Inventory [Line Items]
Inventory Impairments	0		0	0	0
Homebuilding: | East | Housing Completed or Under Construction
Inventory [Line Items]
Inventory Impairments	$ 2,515		$ 0	$ 2,515	$ 0