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Debt - Narrative (Details) $ in Thousands		1 Months Ended			3 Months Ended		9 Months Ended
	Jul. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Nov. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($) property	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Nov. 18, 2014 USD ($)
Debt Instrument [Line Items]
Unsecured term loan		$ 346,639			$ 346,639		$ 346,639
Long-term Debt, Gross		2,254,099			2,254,099		2,254,099
Mortgage notes assumed								$ 42,300
Derivative Notional Amount									$ 0
Interest rate swap
Debt Instrument [Line Items]
Derivative Notional Amount		350,000			350,000		350,000
Maximum
Debt Instrument [Line Items]
Reimbursement Agreement, Amount										$ 14,000
Reimbursement Agreement, Debt Covenant, Assets Value										$ 14,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		49,000			49,000		49,000
Mortgages [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		45,099			45,099		45,099		$ 50,395
Debt Instrument, Collateral Amount		$ 80,000			$ 80,000		$ 80,000
Long-term Debt, Weighted Average Interest Rate		3.80%			3.80%		3.80%		3.94%
Unamortized debt issuance costs, net		$ 2,147			$ 2,147		$ 2,147		$ 2,424
Mortgages [Member] | Property Acquisition [Member]
Debt Instrument [Line Items]
Number of properties acquired | property						4
Mortgage notes assumed						$ 42,300
Coupon Rate						3.63%		3.63%
Unamortized debt issuance costs, net						$ 2,500		$ 2,500
Mortgages [Member] | Notes payable, Due September 2023, 5.01 percent
Debt Instrument [Line Items]
Long-term Debt, Gross									$ 4,622
Repayment of debt					$ 4,600
Coupon Rate		5.01%			5.01%		5.01%		5.01%
Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 350,000			$ 350,000		$ 350,000
Unamortized debt issuance costs, net		3,361			3,361		3,361
Unsecured Debt [Member] | 2029 Unsecured term loan
Debt Instrument [Line Items]
Long-term Debt, Gross		350,000			350,000		350,000
Debt Instrument, Face Amount	$ 350,000	$ 350,000			$ 350,000		$ 350,000
Debt Instrument, Interest Rate, Effective Percentage		4.52%			4.52%		4.52%
Debt Instrument, Term	5 years 6 months
Hedge, fixed interest rate		3.57%			3.57%		3.57%
Additional lender commitments	$ 500,000
Unsecured Debt [Member] | 2029 Unsecured term loan | Term SOFR
Debt Instrument [Line Items]
Spread on variable rate	0.95%	0.95%
Unsecured Debt [Member] | 2029 Unsecured term loan | Interest rate swap
Debt Instrument [Line Items]
Hedge, fixed interest rate	3.57%
Derivative Notional Amount	$ 350,000
Unsecured Debt [Member] | 2029 Unsecured term loan | Minimum | Term SOFR
Debt Instrument [Line Items]
Spread on variable rate	0.80%
Unsecured Debt [Member] | 2029 Unsecured term loan | Maximum | Term SOFR
Debt Instrument [Line Items]
Spread on variable rate	1.60%
Senior Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 1,810,000			$ 1,810,000		$ 1,810,000		$ 1,810,000
Unamortized debt issuance costs, net		16,223			16,223		$ 16,223		17,953
Senior Unsecured Debt [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 1,000,000
Debt Instrument, Accordion Option Additional Lender Commitments, Maximum				$ 1,750,000
Senior Unsecured Debt [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Spread on variable rate				0.775%
Senior Unsecured Debt [Member] | Revolving Credit Facility [Member] | Term SOFR
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 1,000,000
Spread on variable rate							0.875%
Variable rate			0.10%				0.10%
Senior Unsecured Debt [Member] | Revolving Credit Facility [Member] | Minimum | LIBOR [Member]
Debt Instrument [Line Items]
Spread on variable rate				0.725%
Senior Unsecured Debt [Member] | Revolving Credit Facility [Member] | Maximum | LIBOR [Member]
Debt Instrument [Line Items]
Spread on variable rate				1.40%
Senior Unsecured Debt [Member] | 2025 Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 50,000			$ 50,000		$ 50,000		50,000
Coupon Rate		4.16%			4.16%		4.16%
Debt Instrument, Interest Rate, Effective Percentage		4.16%			4.16%		4.16%
Senior Unsecured Debt [Member] | 2027 Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 50,000			$ 50,000		$ 50,000		50,000
Coupon Rate		4.26%			4.26%		4.26%
Debt Instrument, Interest Rate, Effective Percentage		4.26%			4.26%		4.26%
Senior Unsecured Debt [Member] | 2031 Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 125,000			$ 125,000		$ 125,000		125,000
Coupon Rate		4.47%			4.47%		4.47%
Debt Instrument, Interest Rate, Effective Percentage		4.42%			4.42%		4.42%
Senior Unsecured Debt [Member] | 2030 Senior Unsecured Public Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 350,000			$ 350,000		$ 350,000		350,000
Coupon Rate		2.90%			2.90%		2.90%
Debt Instrument, Interest Rate, Effective Percentage		3.49%			3.49%		3.49%
Senior Unsecured Debt [Member] | 2028 Senior Unsecured Public Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 350,000			$ 350,000		$ 350,000		350,000
Coupon Rate		2.00%			2.00%		2.00%
Debt Instrument, Interest Rate, Effective Percentage		2.11%			2.11%		2.11%
Senior Unsecured Debt [Member] | 2033 Senior Unsecured Public Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 300,000			$ 300,000		$ 300,000		300,000
Coupon Rate		2.60%			2.60%		2.60%
Debt Instrument, Interest Rate, Effective Percentage		2.13%			2.13%		2.13%
Senior Unsecured Debt [Member] | 2032 Senior Unsecured Public Notes
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 300,000			$ 300,000		$ 300,000		$ 300,000
Coupon Rate		4.80%			4.80%		4.80%
Debt Instrument, Interest Rate, Effective Percentage		3.96%			3.96%		3.96%

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