Debt - Narrative (Details) - USD ($)	1 Months Ended				12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 31, 2023	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Oct. 31, 2023
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Commercial paper, maximum aggregate amount outstanding	$ 500,000,000				$ 500,000,000
Repayment of unsecured debt					750,000,000	$ 100,000,000	$ 462,147,000
Restricted cash	133,070,000				133,070,000	121,056,000	$ 123,537,000
Total net real estate	19,372,848,000				$ 19,372,848,000	18,992,807,000
Percentage of principle amount at which the entity may redeem some or all of the notes					100.00%
Avalon Clinton North and Avalon Clinton South
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Restricted cash		$ 37,600,000
Asset Pledged as Collateral | Notes Payable, Other Payables
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Total net real estate	1,284,650,000				$ 1,284,650,000
Variable rate unsecured credit facility
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Available borrowing capacity	$ 2,250,000,000				$ 2,250,000,000	$ 2,250,000,000
Line of credit facility, commitment fee (as a percent)					0.12%
Line of Credit Facility, Commitment Fee Percentage, Increase (Decrease)			0.005%
Variable rate unsecured credit facility | Minimum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Line of credit facility, commitment fee (as a percent)					0.095%
Variable rate unsecured credit facility | Maximum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Line of credit facility, commitment fee (as a percent)					0.295%
Variable rate unsecured credit facility | Secured Overnight Financing Rate (SOFR)
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, effective interest rate (as a percent)	6.19%				6.19%
Debt instrument, basis spread on variable rate (as a percent)					0.805%
Debt Instrument, Basis Spread On Variable Rate, Increase (Decrease)			0.02%
Variable rate unsecured credit facility | Secured Overnight Financing Rate (SOFR) | Minimum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					0.63%
Variable rate unsecured credit facility | Secured Overnight Financing Rate (SOFR) | Maximum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					1.38%
Variable rate unsecured credit facility | SOFR Adjustment
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					0.10%
Variable rate unsecured credit facility | SOFR Base Rate
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					0.705%
Unsecured notes | Minimum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					0.10%
Unsecured notes | Maximum
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)					0.30%
Unsecured notes | Notes Payable 2.850 Maturities 2023
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Repayment of unsecured debt				$ 250,000,000
Stated interest rate (as a percent)				2.85%
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Repayment of unsecured debt		$ 150,000,000
Unsecured notes | Notes Payable Maturities 2029
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Stated interest rate (as a percent)	3.30%				3.30%
Unsecured notes | Unsecured Notes 5.300 Percent
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, effective interest rate (as a percent)	5.19%				5.19%
Stated interest rate (as a percent)	5.30%				5.30%
Unsecured notes | Notes Payable 4.200 Maturities 2023
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Repayment of unsecured debt	$ 350,000,000
Stated interest rate (as a percent)	4.20%				4.20%
Secured notes | Notes Payable Maturities 2029
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, effective interest rate (as a percent)								5.97%
Stated interest rate (as a percent)								4.18%
Face amount, debt instrument								$ 63,041,000
Unsecured Notes 5.300 Percent
Mortgage Notes Payable, Unsecured Notes and Credit Facility
Face amount, debt instrument	$ 400,000,000				$ 400,000,000
Proceeds from issuance of debt	$ 397,156,000