Indebtedness - Summary of Indebtedness (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2022	Aug. 12, 2022	Apr. 18, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 1,990,948
Unsecured Credit Facility		357,000			$ 79,000
2027 Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 6,070			6,070
Interest Rate		7.15%
Effective Interest Rate		7.11%
Maturity Date		May 15, 2027
2028 Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 31,901			31,901
Interest Rate		7.60%
Effective Interest Rate		8.13%
Maturity Date		Jul. 15, 2028
2032 Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 10,600			10,600
Interest Rate		7.75%
Effective Interest Rate		7.87%
Maturity Date		Apr. 15, 2032
2027 Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 125,000			125,000
Interest Rate		4.30%
Effective Interest Rate		4.30%
Maturity Date		Apr. 20, 2027
2028 Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 150,000			150,000
Interest Rate		3.86%
Effective Interest Rate		3.86%
Maturity Date		Feb. 15, 2028
2029 Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 75,000			75,000
Interest Rate		4.40%
Effective Interest Rate		4.40%
Maturity Date		Apr. 20, 2029
2029 II Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 150,000			150,000
Interest Rate		3.97%
Effective Interest Rate		4.23%
Maturity Date		Jul. 23, 2029
2030 Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 150,000			150,000
Interest Rate		3.96%
Effective Interest Rate		3.96%
Maturity Date		Feb. 15, 2030
2030 II Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 100,000			100,000
Interest Rate		2.74%
Effective Interest Rate		2.74%
Maturity Date		Sep. 17, 2030
2032 Private Placement Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 200,000			200,000
Interest Rate		2.84%
Effective Interest Rate		2.84%
Maturity Date		Sep. 17, 2032
2015 Unsecured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 0			260,000
2021 Unsecured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 200,000			200,000
Interest Rate		1.84%
Maturity Date		Jul. 07, 2026
2022 Unsecured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 425,000		$ 425,000	0
Interest Rate		3.46%
Maturity Date		Oct. 18, 2027
2022 Unsecured Term Loan II
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 0	$ 300,000		0
Maturity Date		Aug. 12, 2025
Mortgage Loans Payable
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 10,377			79,764
Unamortized Debt Issuance Costs		0			(90)
Long-term Debt		$ 10,377			79,674
Interest Rate		4.17%
Effective Interest Rate		4.17%
Maturity Date		Aug. 01, 2028
Senior Unsecured Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 998,571			998,571
Unamortized Debt Issuance Costs		(4,955)			(5,491)
Unamortized Discounts		(54)			(59)
Long-term Debt		993,562			993,021
Unsecured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross		625,000			460,000
Unamortized Debt Issuance Costs		(5,939)			(1,675)
Long-term Debt		619,061			458,325
Unsecured Credit Facility
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs		(3,608)			(4,577)
Unsecured Credit Facility	[1]	$ 357,000			$ 79,000
Interest Rate		3.89%
Maturity Date	[1]	Jul. 07, 2025

[1] Amounts exclude unamortized debt issuance costs of $3,608 and $4,577 as of September 30, 2022 and December 31, 2021, respectively, which are included in the line item Prepaid Expenses and Other Assets, Net. At our option, we may extend the maturity pursuant to two six-month extension options, subject to certain conditions.