Homebuilding Accrued and Other Liabilities and Financial Services Accounts Payable and Accrued Liabilities - Homebuilding Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Warranty accrual	$ 35,017	$ 33,873	$ 33,664	$ 30,458	$ 30,887	$ 31,386
Lease liability			28,897
Homebuilding:
Segment Reporting Information [Line Items]
Customer and escrow deposits	84,780		67,022
Accrued compensation and related expenses	54,578		56,682
Warranty accrual	35,017		33,664
Accrued interest	32,122		27,650
Lease liability	28,454		30,221
Land development and home construction accruals	15,620		10,824
Construction defect claim reserves	8,353		8,479
Income taxes payable	6,468		8,285
Other accrued liabilities	65,537		57,908
Accrued and other liabilities	$ 330,929		$ 300,735