v3.24.2
FAIR VALUE OF DERIVATIVES AND FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Derivative Asset Designated as Hedging Instrument, Fair Value $ 7,622 $ 10,103
Debt instruments - fair value    
Redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership 1,021,782 961,087
Transfers between levels of fair value hierarchy 0  
Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Notes receivable 241,842 228,825
Total assets 251,214 246,138
Debt instruments - fair value    
Total liabilities 5,799,396 5,823,923
Redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership 1,021,782 961,087
Carrying (Reported) Amount, Fair Value Disclosure | Equity Securities | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Equity securities 1,750 7,210
Carrying (Reported) Amount, Fair Value Disclosure | Interest rate contracts | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Derivative Asset Designated as Hedging Instrument, Fair Value 7,622 10,103
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Notes receivable 236,167 222,755
Total assets 245,539 240,068
Debt instruments - fair value    
Total liabilities 5,163,069 5,215,522
Redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership 1,021,782 961,087
Estimate of Fair Value, Fair Value Disclosure | Equity Securities | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Equity securities 1,750 7,210
Estimate of Fair Value, Fair Value Disclosure | Interest rate contracts | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Derivative Asset Designated as Hedging Instrument, Fair Value 7,622 10,103
Estimate of Fair Value, Fair Value Disclosure | Level 1 | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Total assets 1,750 7,210
Estimate of Fair Value, Fair Value Disclosure | Level 1 | Equity Securities | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Equity securities 1,750 7,210
Estimate of Fair Value, Fair Value Disclosure | Level 2 | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Total assets 7,622 10,103
Debt instruments - fair value    
Redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership 1,021,782 961,087
Estimate of Fair Value, Fair Value Disclosure | Level 2 | Interest rate contracts | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Derivative Asset Designated as Hedging Instrument, Fair Value 7,622 10,103
Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Estimated fair values of the financial instruments either recorded or disclosed on a recurring basis    
Notes receivable 236,167 222,755
Total assets 236,167 222,755
Debt instruments - fair value    
Total liabilities 5,163,069 5,215,522
Unsecured Debt | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 4,127,991 4,129,010
Unsecured Debt | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 3,590,252 3,611,697
Unsecured Debt | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 3,590,252 3,611,697
Unsecured Debt | Working capital credit facility | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,557 4,593
Unsecured Debt | Working capital credit facility | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,557 4,593
Unsecured Debt | Working capital credit facility | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,557 4,593
Unsecured Debt | Commercial Paper | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 430,000 408,075
Unsecured Debt | Commercial Paper | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 430,000 408,075
Unsecured Debt | Commercial Paper | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 430,000 408,075
Fixed Rate Debt | Secured Debt | Mortgages Notes Payable | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,212,848 1,215,228
Fixed Rate Debt | Secured Debt | Mortgages Notes Payable | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,114,260 1,124,140
Fixed Rate Debt | Secured Debt | Mortgages Notes Payable | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 1,114,260 1,124,140
Variable Rate Debt | Secured Debt | Mortgages Notes Payable | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value   40,017
Variable Rate Debt | Secured Debt | Mortgages Notes Payable | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value   40,017
Variable Rate Debt | Secured Debt | Mortgages Notes Payable | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value   40,017
Variable Rate Debt | Secured Debt | Tax-exempt secured notes payable | Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 27,000 27,000
Variable Rate Debt | Secured Debt | Tax-exempt secured notes payable | Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value 27,000 27,000
Variable Rate Debt | Secured Debt | Tax-exempt secured notes payable | Estimate of Fair Value, Fair Value Disclosure | Level 3 | Fair Value, Measurements, Recurring    
Debt instruments - fair value    
Fair value $ 27,000 $ 27,000