Indebtedness - Outstanding Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Borrowings outstanding	$ 2,594,320		$ 2,457,000
Unamortized debt premiums, discounts and issuance costs	(21,711)		(24,208)
Total borrowings outstanding	$ 2,572,609		2,432,792
Senior Notes | Senior unsecured notes, 4.250% interest rate, due in 2024
Debt Instrument [Line Items]
Interest rate (as a percent)	4.25%
Borrowings outstanding	$ 350,000		350,000
Senior Notes | Senior unsecured notes, 4.500% interest rate, due in 2025
Debt Instrument [Line Items]
Interest rate (as a percent)	4.50%
Borrowings outstanding	$ 650,000		650,000
Senior Notes | Senior unsecured notes, 2.650% interest rate, due in 2026
Debt Instrument [Line Items]
Interest rate (as a percent)	2.65%
Borrowings outstanding	$ 300,000		300,000
Senior Notes | Senior unsecured notes, 2.400% interest rate, due in 2027
Debt Instrument [Line Items]
Interest rate (as a percent)	2.40%
Borrowings outstanding	$ 350,000		350,000
Senior Notes | Senior unsecured notes, 3.450% interest rate, due in 2031
Debt Instrument [Line Items]
Interest rate (as a percent)	3.45%
Borrowings outstanding	$ 400,000		400,000
Senior Notes | Senior unsecured notes, 6.375% interest rate, due in 2050
Debt Instrument [Line Items]
Interest rate (as a percent)	6.375%
Borrowings outstanding	$ 162,000		162,000
Mortgage Note Payable
Debt Instrument [Line Items]
Interest rate (as a percent)	7.792%
Total borrowings outstanding	$ 177,320
Mortgage Note Payable | Mortgage note payable, 3.700% interest rate, due in 2023
Debt Instrument [Line Items]
Interest rate (as a percent)	3.70%	3.70%
Borrowings outstanding	$ 0		50,000
Mortgage Note Payable | Mortgage note payable, 8.272% interest rate, due in 2028
Debt Instrument [Line Items]
Interest rate (as a percent)	8.272%
Borrowings outstanding	$ 42,700		0
Mortgage Note Payable | Mortgage note payable, 8.139% interest rate, due in 2028
Debt Instrument [Line Items]
Interest rate (as a percent)	8.139%
Borrowings outstanding	$ 26,340		0
Mortgage Note Payable | Mortgage note payable, 7.671% interest rate, due in 2028
Debt Instrument [Line Items]
Interest rate (as a percent)	7.671%
Borrowings outstanding	$ 54,300		0
Mortgage Note Payable | Mortgage note payable, 7.210% interest rate, due in 2033
Debt Instrument [Line Items]
Interest rate (as a percent)	7.21%
Borrowings outstanding	$ 30,680		0
Mortgage Note Payable | Mortgage note payable, 7.305% interest rate, due in 2033
Debt Instrument [Line Items]
Interest rate (as a percent)	7.305%
Borrowings outstanding	$ 8,400		0
Mortgage Note Payable | Mortgage note payable, 7.717% interest rate, due in 2033
Debt Instrument [Line Items]
Interest rate (as a percent)	7.717%
Borrowings outstanding	$ 14,900		0
Revolving credit facility | Line of Credit
Debt Instrument [Line Items]
Borrowings outstanding	$ 205,000		$ 195,000