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Debt (Senior Notes, Term Loans, and Revolver) (Details)	1 Months Ended		6 Months Ended
Debt (Senior Notes, Term Loans, and Revolver) (Details)	May 31, 2023 USD ($) option	Jan. 31, 2023 USD ($)	Jun. 30, 2023 USD ($) option	Dec. 31, 2022 USD ($)
Debt
Unsecured Debt, Gross			$ 825,000,000	$ 823,662,000
Unamortized debt issuance costs on term loans			(4,437,000)	(3,126,000)
Debt, net			2,218,737,000	2,217,555,000
Deferred financing costs, net			$ (9,511,000)	(10,693,000)
Number of extension options \| option			2
Prepaid expenses and other assets
Debt
Debt Issuance Costs, Net			$ (6,300,000)	(1,700,000)
Secured Debt \| Fair Value, Inputs, Level 3
Debt
Secured Debt			407,685,000	407,712,000
Unsecured Debt
Debt
Leverage ratio	7.25
Debt Instrument, Interest Rate, Floor	0.00%
Debt Instrument, Fee Amount	$ 7,400,000
Unsecured Debt \| Fair Value, Inputs, Level 3
Debt
Unsecured Debt			820,563,000	820,536,000
$500 Million Senior Notes Due 2029 \| Level 1
Debt
Long-term Debt, Gross			500,000,000	500,000,000
$500 Million Senior Notes Due 2026 \| Level 1
Debt
Long-term Debt, Gross			500,000,000	500,000,000
Senior Notes \| Level 1
Debt
Long-term Debt, Gross			1,000,000,000	1,000,000,000
Senior Notes
Debt
Long-term Debt, Gross			990,489,000	989,307,000
The Revolver \| Line of Credit
Debt
Unsecured Debt			$ 0	0
Interest Rate			0.00%
Line of Credit Facility, Maximum Borrowing Capacity			$ 600,000,000
Remaining borrowing capacity			$ 600,000,000
The Revolver \| Line of Credit \| Extension Option 1
Debt
Additional maturity term	1 year		1 year
The Revolver \| Line of Credit \| Extension Option 2
Debt
Additional maturity term	6 months		6 months
Number of extension options \| option	2		2
The Revolver \| Unsecured Debt \| SOFR
Debt
Basis spread on variable rate (percent)	0.10%
The Revolver \| Unsecured Debt \| SOFR \| Minimum
Debt
Basis spread on variable rate (percent)	1.40%
The Revolver \| Unsecured Debt \| SOFR \| Maximum
Debt
Basis spread on variable rate (percent)	1.95%
The Revolver \| Unsecured Debt \| Base Rate \| Minimum
Debt
Basis spread on variable rate (percent)	0.40%
The Revolver \| Unsecured Debt \| Base Rate \| Maximum
Debt
Basis spread on variable rate (percent)	0.95%
Conventional Mortgage Loan
Debt
Unsecured Debt			$ 820,563,000	820,536,000
$500 Million Senior Notes Due 2029 \| Unsecured Debt
Debt
Debt Instrument, Interest Rate, Stated Percentage			4.00%
$500 Million Senior Notes Due 2026 \| Unsecured Debt
Debt
Debt Instrument, Interest Rate, Stated Percentage			3.75%
$400 Million Term Loan Maturing 2025 \| Unsecured Debt
Debt
Unsecured Debt			$ 400,000,000	400,000,000
Interest Rate			3.43%
Line of Credit Facility, Maximum Borrowing Capacity	$ 400,000,000		$ 400,000,000
$200 Million Term Loan Maturing 2026
Debt
Additional maturity term			1 year
$200 Million Term Loan Maturing 2026 \| Unsecured Debt
Debt
Unsecured Debt			$ 200,000,000	105,000,000
Interest Rate			3.50%
Line of Credit Facility, Maximum Borrowing Capacity			$ 200,000,000
Additional maturity term			1 year
Number of extension options \| option			2
Proceeds from long-term lines of credit			$ 95,000,000
$225 Million Term Loan Maturing 2026 \| Unsecured Debt
Debt
Unsecured Debt			$ 225,000,000	0
Interest Rate			3.02%
Line of Credit Facility, Maximum Borrowing Capacity	$ 225,000,000		$ 225,000,000
Additional maturity term	1 year		1 year
Number of extension options \| option	2		2
$225 Million Term Loan Maturing 2026 \| Unsecured Debt \| SOFR \| Minimum
Debt
Basis spread on variable rate (percent)	1.45%
$225 Million Term Loan Maturing 2026 \| Unsecured Debt \| SOFR \| Maximum
Debt
Basis spread on variable rate (percent)	2.20%
$225 Million Term Loan Maturing 2026 \| Unsecured Debt \| Base Rate \| Minimum
Debt
Basis spread on variable rate (percent)	0.45%
$225 Million Term Loan Maturing 2026 \| Unsecured Debt \| Base Rate \| Maximum
Debt
Basis spread on variable rate (percent)	1.20%
$400 Million Term Loan Maturing 2024 \| Unsecured Debt
Debt
Unsecured Debt			$ 0	151,683,000
Interest Rate			0.00%
Line of Credit Facility, Maximum Borrowing Capacity	$ 400,000,000		$ 400,000,000
Repayments of Debt	151,700,000
$225 Million Term Loan Maturing 2023 \| Unsecured Debt
Debt
Unsecured Debt			$ 0	41,745,000
Interest Rate			0.00%
Line of Credit Facility, Maximum Borrowing Capacity		$ 225,000,000	$ 225,000,000
Proceeds from long-term lines of credit			95,000,000
Repayments of Debt		41,700,000
$400 Million Term Loan Maturing 2023 \| Unsecured Debt
Debt
Unsecured Debt			$ 0	52,261,000
Interest Rate			0.00%
Line of Credit Facility, Maximum Borrowing Capacity		400,000,000	$ 400,000,000
Repayments of Debt		$ 52,300,000
$225 Million Term Loan Maturing 2024 \| Unsecured Debt
Debt
Unsecured Debt			$ 0	$ 72,973,000
Interest Rate			0.00%
Line of Credit Facility, Maximum Borrowing Capacity	225,000,000		$ 225,000,000
Repayments of Debt	$ 73,000,000