Debt (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Debt Instrument [Line Items]
Other notes payable	$ 42,578,000		$ 35,766,000
Current borrowing capacity	1,300,000,000
Maximum borrowing capacity	1,800,000,000
Revolving credit facility	0
Letters of credit outstanding	307,700,000		321,100,000
Line of credit facility, remaining borrowing capacity	942,300,000		928,900,000
Financial Services debt	426,851,000		526,906,000
Joint Venture Debt | Joint Venture
Debt Instrument [Line Items]
Joint venture debt outstanding	34,900,000
Notes Payables
Debt Instrument [Line Items]
Other notes payable	$ 42,600,000		35,800,000
Debt instrument term	5 years
Notes payable issued to acquire land inventory	$ 9,500,000	$ 5,400,000
Line of Credit | Repurchase Agreement
Debt Instrument [Line Items]
Accordion feature	50,000,000
Financial Services
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity	$ 223,100,000		$ 148,100,000
Weighted-average interest rate	6.12%		6.13%
Financial Services | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 650,000,000.0
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility			$ 0
Line of Credit | Financial Services
Debt Instrument [Line Items]
Financial Services debt	$ 426,900,000		$ 526,900,000
Maximum | Notes Payables
Debt Instrument [Line Items]
Stated interest rate	9.00%