Debt And Lines Of Credit , Narrative - Line of Credit (Details)		1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Oct. 05, 2021 USD ($)	Oct. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) loans Rate	Dec. 31, 2020 USD ($) loans Rate	Dec. 31, 2019 USD ($)	Nov. 13, 2021 USD ($)	Sep. 30, 2021 USD ($) loans Rate	Jun. 28, 2021 USD ($)	Jun. 14, 2021 USD ($)	Dec. 22, 2020 USD ($)
Line of Credit Facility [Line Items]
Line of credit and other						$ 1,197,181,000
Long-term Debt					$ 5,698,458
Debt Instrument, Face Amount								$ 1,300,000,000
Weighted average interest rate | Rate					3.038%	3.37%
Debt weighted average to maturity, length					8 years 9 months 18 days	9 years 4 months 24 days
Gain (Loss) on Extinguishment of Debt					$ (8,127,000)	$ (5,209,000)	$ (16,505,000)
Safe Harbor [Member]
Line of Credit Facility [Line Items]
Letters of credit outstanding, amount					0	300,000
Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity					12,000,000
Line of Credit, Current						4,800,000
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity					750,000,000
Letters of credit outstanding, amount						2,400,000			$ 2,200,000
Long-term Debt					1,034,833
Senior Unsecured Notes - November 2028 Maturity
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	$ 450,000,000
Stated interest rate	2.30%
Debt Instrument, Term	7 years
Senior Unsecured Notes - July 2031 Maturity - 2nd Tranche
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount	$ 150,000,000
Stated interest rate	2.70%
Debt Instrument, Term	10 years
Senior Unsecured Notes - July 2031 Maturity - First Tranche
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount										$ 600,000,000
Stated interest rate										2.70%
Debt Instrument, Term	10 years
Secured Debt [Member]
Line of Credit Facility [Line Items]
Long-term Debt					$ 3,393,713	0
Debt Instrument, Face Amount			$ 230,000,000			$ 268,800,000
Weighted average interest rate					3.779%	3.751%
Debt weighted average to maturity, length					10 years 7 months 6 days	11 years 4 months 24 days
Stated interest rate			2.995%			2.662%
Debt Instrument, Term			15 years			12 years
Preferred Equity, Mandatorily Redeemable [Member]
Line of Credit Facility [Line Items]
Long-term Debt					$ 34,663
Weighted average interest rate | Rate					6.00%	6.00%
Debt weighted average to maturity, length					2 years 9 months 18 days	3 years 9 months 18 days
Temporary Equity, Term				7 years
Financial Instruments Subject to Mandatory Redemption, Value of Shares Issued				$ 35,300,000		$ 33,400,000
Collateralized Term Loan 1 [Member]
Line of Credit Facility [Line Items]
Number of Collateralized Term Loans | loans					2	3			4
Collateralized Term Loan 1 [Member] | Secured Debt [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount					$ 8,800,000
Collateralized Term Loan 2 [Member]
Line of Credit Facility [Line Items]
Number of Collateralized Term Loans | loans						1			2
Collateralized Term Loan 2 [Member] | Secured Debt [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Face Amount					39,500,000
Term Loan [Member] | Safe Harbor [Member]
Line of Credit Facility [Line Items]
Long-term Debt					500,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit and other					1,034,833,000
Long-term Debt					$ 1,000,000,000	$ 40,400,000
Weighted average interest rate | Rate					0.978%	2.107%
Debt weighted average to maturity, length					3 years 6 months	3 years 8 months 12 days
Revolving Credit Facility [Member] | Safe Harbor [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity												$ 1,800,000,000
Line of credit and other					$ 652,000,000
Gain (Loss) on Extinguishment of Debt					7,900,000
Revolving Credit Facility [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity					$ 500,000,000						$ 1,000,000,000
Line of credit and other		$ 58,000,000				$ 45,000,000					$ 2,000,000,000
Debt Instrument, Term		4 years			4 years
Revolving Credit Facility [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate | Rate									0.95%
Revolving Credit Facility [Member] | Eurodollar [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Basis points					0.85%
Revolving Credit Facility [Member] | A&R Facility | Safe Harbor [Member]
Line of Credit Facility [Line Items]
Gain (Loss) on Extinguishment of Debt					$ 200,000
Minimum [Member] | Term Loan [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Basis points					0.80%
Debt Instrument, Interest Rate, Effective Percentage | Rate						1.20%
Minimum [Member] | Revolving Credit Facility [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Basis points					0.725%
Maximum [Member] | Term Loan [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Basis points					1.60%
Debt Instrument, Interest Rate, Effective Percentage | Rate					2.05%
Maximum [Member] | Revolving Credit Facility [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Basis points					1.40%
Sungenia JV [Member]
Line of Credit Facility [Line Items]
Equity Method Investment, Ownership Percentage					50.00%	50.00%