Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt, net	$ 2,219,781	$ 2,217,555
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	42,204	44,688
Interest rate swap \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest Rate Cash Flow Hedge Asset at Fair Value	(42,204)	(44,688)
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	42,204	44,688
Level 1 \| Interest rate swap \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest Rate Cash Flow Hedge Asset at Fair Value	0	0
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	0	0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value	2,071,093	2,055,338
Fair Value, Inputs, Level 3 \| Interest rate swap \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest Rate Cash Flow Hedge Asset at Fair Value	0	0
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	0	0
Fair Value, Inputs, Level 3 \| Unsecured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Unsecured Debt	821,030	820,536
Long-term Debt, Fair Value	817,431	812,604
Fair Value, Inputs, Level 3 \| Secured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Secured Debt	407,670	407,712
Long-term Debt, Fair Value	391,502	388,839
Fair Value, Inputs, Level 2 [Member] \| Interest rate swap \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Interest Rate Cash Flow Hedge Asset at Fair Value	(42,204)	(44,688)
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	42,204	44,688
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Gross	991,081	989,307
Senior Notes \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term Debt, Fair Value	$ 862,160	$ 853,895

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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