Inventories - Inventory Impairments (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Inventory [Line Items]
Inventory Impairments	$ 2,200	$ 6,200	$ 13,500	$ 7,800	$ 92,800	$ 28,415	$ 660	$ 1,600	$ 29,700	$ 121,875	$ 1,600
Homebuilding:
Inventory [Line Items]
Inventory Impairments									29,700	121,875	1,600
Homebuilding: | Housing completed or under construction
Inventory [Line Items]
Inventory Impairments									5,206	9,829	1,600
Homebuilding: | Land and land under development
Inventory [Line Items]
Inventory Impairments									24,494	112,046	0
Homebuilding: | West | Housing completed or under construction
Inventory [Line Items]
Inventory Impairments									3,673	8,017	1,600
Homebuilding: | West | Land and land under development
Inventory [Line Items]
Inventory Impairments									15,677	88,843	0
Homebuilding: | Mountain | Housing completed or under construction
Inventory [Line Items]
Inventory Impairments									1,533	1,812	0
Homebuilding: | Mountain | Land and land under development
Inventory [Line Items]
Inventory Impairments									8,817	20,688	0
Homebuilding: | East | Housing completed or under construction
Inventory [Line Items]
Inventory Impairments									0	0	0
Homebuilding: | East | Land and land under development
Inventory [Line Items]
Inventory Impairments									$ 0	$ 2,515	$ 0