Number of Communities Encumbered.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Amount, after accumulated amortization, of debt premium.

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No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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SECURED AND UNSECURED DEBT, NET - Summary (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) community	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)
Secured debt instruments
Total Debt, net	$ 5,626,362	$ 5,412,787
Long-term Debt	$ 5,614,737
Weighted average interest rate (as a percent)	3.06%
Weighted Average
Secured debt instruments
Years to maturity	6 years 8 months 12 days
3.00% Medium-Term Notes due August 2031
Secured debt instruments
Long-term Debt			$ 600,000
Secured Debt
Secured debt instruments
Total Debt, net	$ 1,053,560	1,057,380
Long-term Debt	$ 1,032,912
Weighted average interest rate (as a percent)	3.39%
Number of Communities Encumbered \| community	15
Secured Debt \| Weighted Average
Secured debt instruments
Years to maturity	5 years 9 months 18 days
Unsecured Debt
Secured debt instruments
Total Debt, net	$ 4,572,802	4,355,407
Long-term Debt	$ 4,581,825
Weighted average interest rate (as a percent)	3.03%
Deferred finance costs, net	$ (24,935)	(27,222)
Unsecured Debt \| Weighted Average
Secured debt instruments
Years to maturity	6 years 10 months 24 days
Fixed Rate Debt \| Secured Debt
Secured debt instruments
Total Debt, net	$ 1,026,615
Long-term Debt	1,005,912
Fixed Rate Debt \| Secured Debt \| Mortgages Notes Payable
Secured debt instruments
Total Debt, net	1,005,912	1,006,762
Deferred financing costs and other non-cash adjustments	(20,703)	(23,678)
Long-term Debt	$ 1,026,615	1,030,440
Weighted average interest rate (as a percent)	3.42%
Number of Communities Encumbered \| community	14
Fixed Rate Debt \| Secured Debt \| Mortgages Notes Payable \| Weighted Average
Secured debt instruments
Years to maturity	5 years 8 months 12 days
Fixed Rate Debt \| Unsecured Debt \| Term Loan due January 2027
Secured debt instruments
Long-term Debt	$ 175,000	315,000
Weighted average interest rate (as a percent)	1.43%
Fixed Rate Debt \| Unsecured Debt \| Term Loan due January 2027 \| Weighted Average
Secured debt instruments
Years to maturity	4 years 3 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 8.50% Debentures, Due September 2024
Secured debt instruments
Long-term Debt	$ 15,644	$ 15,644
Stated interest rate	8.50%	8.50%
Weighted average interest rate (as a percent)	8.50%
Fixed Rate Debt \| Unsecured Debt \| 8.50% Debentures, Due September 2024 \| Weighted Average
Secured debt instruments
Years to maturity	2 years
Fixed Rate Debt \| Unsecured Debt \| 2.95% Medium-Term Note due September 2026
Secured debt instruments
Long-term Debt	$ 300,000	$ 300,000
Stated interest rate	2.95%	2.95%
Weighted average interest rate (as a percent)	2.89%
Fixed Rate Debt \| Unsecured Debt \| 2.95% Medium-Term Note due September 2026 \| Weighted Average
Secured debt instruments
Years to maturity	3 years 10 months 24 days
Fixed Rate Debt \| Unsecured Debt \| 3.50 Medium-Term Note due July 2027
Secured debt instruments
Total Debt, net	$ 299,665	$ 299,612
Stated interest rate	3.50%	3.50%
Unamortized discount	$ 335	$ 388
Weighted average interest rate (as a percent)	4.03%
Fixed Rate Debt \| Unsecured Debt \| 3.50 Medium-Term Note due July 2027 \| Weighted Average
Secured debt instruments
Years to maturity	4 years 9 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 3.50% Medium-Term Notes Due January 2028
Secured debt instruments
Total Debt, net	$ 299,373	$ 299,283
Stated interest rate	3.50%	3.50%
Unamortized discount	$ 627	$ 717
Weighted average interest rate (as a percent)	3.50%
Fixed Rate Debt \| Unsecured Debt \| 3.50% Medium-Term Notes Due January 2028 \| Weighted Average
Secured debt instruments
Years to maturity	5 years 3 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 4.40% Medium-Term Notes due January 2029
Secured debt instruments
Total Debt, net	$ 299,996	$ 299,996
Stated interest rate	4.40%	4.40%
Unamortized discount	$ 4	$ 4
Weighted average interest rate (as a percent)	4.27%
Fixed Rate Debt \| Unsecured Debt \| 4.40% Medium-Term Notes due January 2029 \| Weighted Average
Secured debt instruments
Years to maturity	6 years 3 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 3.20% Medium-Term Notes due January 2030
Secured debt instruments
Total Debt, net	$ 610,010	$ 611,040
Stated interest rate	3.20%	3.20%
Unamortized discount	$ 10,010	$ 11,040
Weighted average interest rate (as a percent)	3.32%
Fixed Rate Debt \| Unsecured Debt \| 3.20% Medium-Term Notes due January 2030 \| Weighted Average
Secured debt instruments
Years to maturity	7 years 3 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 3.00% Medium-Term Notes due August 2031
Secured debt instruments
Total Debt, net	$ 610,602	$ 611,498
Stated interest rate	3.00%	3.00%
Unamortized discount		$ 11,498
Unamortized net premium	$ 10,602
Weighted average interest rate (as a percent)	3.01%
Fixed Rate Debt \| Unsecured Debt \| 3.00% Medium-Term Notes due August 2031 \| Weighted Average
Secured debt instruments
Years to maturity	8 years 10 months 24 days
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium Term Note Due August 2032
Secured debt instruments
Total Debt, net	$ 399,654	399,627
Stated interest rate	2.10%
Unamortized discount	$ 346	373
Weighted average interest rate (as a percent)	2.10%
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium Term Note Due August 2032 \| Weighted Average
Secured debt instruments
Years to maturity	9 years 9 months 18 days
Fixed Rate Debt \| Unsecured Debt \| 1.90% Medium-Term Notes due March 2033
Secured debt instruments
Total Debt, net	$ 348,740	$ 348,649
Stated interest rate	1.90%	1.90%
Unamortized discount	$ 1,260	$ 1,351
Weighted average interest rate (as a percent)	1.90%
Fixed Rate Debt \| Unsecured Debt \| 1.90% Medium-Term Notes due March 2033 \| Weighted Average
Secured debt instruments
Years to maturity	10 years 6 months
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium-Term Note due June 2033
Secured debt instruments
Total Debt, net	$ 298,934	$ 298,860
Stated interest rate	2.10%	2.10%
Unamortized discount	$ 1,066	$ 1,140
Weighted average interest rate (as a percent)	2.10%
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium-Term Note due June 2033 \| Weighted Average
Secured debt instruments
Years to maturity	10 years 8 months 12 days
Fixed Rate Debt \| Unsecured Debt \| 3.10% Medium-Term Notes due November 2034
Secured debt instruments
Total Debt, net	$ 298,933	$ 298,867
Stated interest rate	3.10%	3.10%
Unamortized discount	$ 1,067	$ 1,133
Weighted average interest rate (as a percent)	3.13%
Fixed Rate Debt \| Unsecured Debt \| 3.10% Medium-Term Notes due November 2034 \| Weighted Average
Secured debt instruments
Years to maturity	12 years 1 month 6 days
Fixed Rate Debt \| Unsecured Debt \| Other [Member]
Secured debt instruments
Total Debt, net	$ 5	7
Variable Rate Debt \| Secured Debt
Secured debt instruments
Total Debt, net	26,945
Long-term Debt	27,000
Variable Rate Debt \| Secured Debt \| Tax-exempt notes payable
Secured debt instruments
Total Debt, net	26,945	26,940
Long-term Debt	$ 27,000	27,000
Weighted average interest rate (as a percent)	2.38%
Number of Communities Encumbered \| community	1
Deferred finance costs, net	$ (55)	(60)
Variable Rate Debt \| Secured Debt \| Tax-exempt notes payable \| Weighted Average
Secured debt instruments
Years to maturity	9 years 6 months
Variable Rate Debt \| Unsecured Debt \| Commercial Paper
Secured debt instruments
Borrowings outstanding	$ 425,000	220,000
Weighted average interest rate (as a percent)	3.44%
Variable Rate Debt \| Unsecured Debt \| Commercial Paper \| Weighted Average
Secured debt instruments
Years to maturity	1 month 6 days
Variable Rate Debt \| Unsecured Debt \| Unsecured Revolving Credit Facility Due January 2026 \| Weighted Average
Secured debt instruments
Years to maturity	3 years 3 months 18 days
Variable Rate Debt \| Unsecured Debt \| Working capital credit facility
Secured debt instruments
Borrowings outstanding	$ 41,181	29,546
Weighted average interest rate (as a percent)	3.92%
Variable Rate Debt \| Unsecured Debt \| Working capital credit facility \| Weighted Average
Secured debt instruments
Years to maturity	1 year 3 months 18 days
Variable Rate Debt \| Unsecured Debt \| Term Loan due January 2027
Secured debt instruments
Long-term Debt	$ 175,000	$ 35,000
Weighted average interest rate (as a percent)	3.37%
Variable Rate Debt \| Unsecured Debt \| Term Loan due January 2027 \| Weighted Average
Secured debt instruments
Years to maturity	4 years 3 months 18 days