Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments applied to principal.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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No definition available.

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Fixed interest rate related to the interest rate derivative.

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No definition available.

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Nominal or face amount used to calculate payment on derivative.

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The number of derivative instruments of a particular group held by the entity.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate at the end of the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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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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Debt Instrument, Number Of Interest Swap Agreements

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Letter of Credit Fee, Commission Percentage

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Debt and Credit Facilities - Narrative (Details)			1 Months Ended	6 Months Ended
Debt and Credit Facilities - Narrative (Details)	Dec. 20, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jul. 31, 2023 USD ($) agreement	Jun. 30, 2023 USD ($) agreement Rate	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Line of Credit Facility [Line Items]
Proceeds from issuance of long-term debt				$ 0	$ 120,000,000
Subsequent Event \| Interest Rate Swap
Line of Credit Facility [Line Items]
Interest rate swap facility, amount			$ 130,000,000
Derivative, number of instruments held \| agreement			4
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,075,000,000.000
Borrowings outstanding				640,000,000		$ 693,800,000
Line of credit borrowings outstanding				550,000,000
Interest rate swap facility, amount				$ 150,000,000
Interest rate swap facility, fixed interest				2.88%
Number of interest rate swap agreements \| agreement				2
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Subsequent Event
Line of Credit Facility [Line Items]
Proceeds from issuance of long-term debt			$ 50,000,000
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Minimum
Line of Credit Facility [Line Items]
Unused capacity commitment fee, percentage	0.125%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Maximum
Line of Credit Facility [Line Items]
Unused capacity commitment fee, percentage	0.25%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Federal Funds Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| One-month Term SOFR
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.10%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| One-month Term SOFR \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.125%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| One-month Term SOFR \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.75%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.10%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| SOFR \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.125%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| SOFR \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.75%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Base Rate \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.125%
Revolving Credit Facility \| 2022 Credit Agreement \| Unsecured Debt \| Base Rate \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.75%
Revolving Credit Facility \| Variable Rate Revolving Credit Facility \| Unsecured Debt
Line of Credit Facility [Line Items]
Line of credit borrowings outstanding				$ 400,000,000
Line of credit facility, interest rate				6.43%
Letter of Credit \| 2022 Credit Agreement \| Unsecured Debt
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 100,000,000
Standby Letters of Credit \| 2022 Credit Agreement \| Unsecured Debt
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 48,600,000
Standby Letters of Credit \| 2022 Credit Agreement \| Unsecured Debt \| Minimum
Line of Credit Facility [Line Items]
Commission percentage	1.125%
Standby Letters of Credit \| 2022 Credit Agreement \| Unsecured Debt \| Maximum
Line of Credit Facility [Line Items]
Commission percentage	1.75%
Line of Credit \| BMO Term Loan \| Unsecured Debt
Line of Credit Facility [Line Items]
Term loan face amount		$ 100,000,000
Periodic payment, principal		$ 1,250,000
Term loan interest rate \| Rate				1.28%
Term loan				$ 90,000,000		$ 93,800,000