Fair Value - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Recurring basis - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments Measured/Discussed at Fair Value
Total Assets	$ 0	$ 0
Down Real Estate Investment Trust Units Fair Value		1,211
Total Liabilities	6,716,631	6,654,892
Significant Other Observable Inputs (Level 2)
Financial Instruments Measured/Discussed at Fair Value
Notes Receivable, net	118,127	28,860
Total Assets	123,375	29,315
Total Liabilities	644,475	768,984
Significant Unobservable Inputs (Level 3)
Financial Instruments Measured/Discussed at Fair Value
Total Assets	0	0
Total Liabilities	0	0
Total Fair Value
Financial Instruments Measured/Discussed at Fair Value
Notes Receivable, net	118,127	28,860
Total Assets	123,375	29,315
Down Real Estate Investment Trust Units Fair Value		1,211
Total Liabilities	7,361,106	7,423,876
Not Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) | Interest Rate Caps
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	85	455
Not Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) | Interest Rate Swap
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	5,163
Derivative Liability	162
Not Designated as Hedging Instrument [Member] | Total Fair Value | Interest Rate Caps
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	85	455
Not Designated as Hedging Instrument [Member] | Total Fair Value | Interest Rate Swap
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	5,163
Derivative Liability	162
Unsecured notes | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	6,716,631	6,653,681
Unsecured notes | Total Fair Value
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	6,716,631	6,653,681
Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness | Significant Other Observable Inputs (Level 2)
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	644,313	768,984
Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness | Total Fair Value
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	$ 644,313	$ 768,984