Debt (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 27, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Repayments of notes payable			$ 4,856,000	$ 797,395,000
Loss on debt retirement	$ 0	$ 0	0	61,469,000
Other notes payable	55,228,000		55,228,000			$ 40,185,000
Current borrowing capacity	1,300,000,000		1,300,000,000
Maximum borrowing capacity	1,800,000,000		1,800,000,000
Revolving credit facility	319,000,000		319,000,000
Letters of credit outstanding	340,700,000		340,700,000			298,800,000
Line of credit facility, remaining borrowing capacity	590,300,000		590,300,000			701,200,000
Financial Services debt	338,190,000		338,190,000			626,123,000
Joint Venture Debt | Joint Venture
Debt Instrument [Line Items]
Joint venture debt outstanding	$ 70,700,000		$ 70,700,000
Joint Venture Debt | Joint Venture | Joint Venture with 50% Interest
Debt Instrument [Line Items]
Ownership interest	50.00%		50.00%
Joint Venture Debt | Joint Venture | Joint Venture with 50% Interest
Debt Instrument [Line Items]
Joint venture debt outstanding	$ 42,000,000		$ 42,000,000
Notes Payables
Debt Instrument [Line Items]
Other notes payable	55,200,000		$ 55,200,000			40,200,000
Debt instrument term			5 years
Notes payable issued to acquire land inventory			$ 19,900,000	42,600,000
Notes Payables | Notes Payable Maturing in 2021
Debt Instrument [Line Items]
Repayments of notes payable				426,000,000
Notes Payables | Notes Payable Maturing in 2026
Debt Instrument [Line Items]
Repayments of notes payable				200,000,000
Notes Payables | Notes Payable Maturing in 2027
Debt Instrument [Line Items]
Repayments of notes payable				$ 100,000,000
Line of Credit | Financial Services
Debt Instrument [Line Items]
Financial Services debt	338,200,000		338,200,000			626,100,000
Line of Credit | Amendment Effective September 24, 2018 through and including December 25, 2018 | Financial Services
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 655,000,000		$ 655,000,000
Line of Credit | Amendment Effective September 24, 2018 through and including December 25, 2018 | Financial Services | Forecast | Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 800,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility						$ 0
Maximum | Notes Payables
Debt Instrument [Line Items]
Stated interest rate	6.00%		6.00%
Maximum | Line of Credit | Amendment Effective September 24, 2018 through and including December 25, 2018 | Financial Services
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 500,000,000		$ 500,000,000
Minimum | Line of Credit | Amendment Effective September 24, 2018 through and including December 25, 2018 | Financial Services
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 360,000,000		$ 360,000,000