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

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Balance Type:	credit
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- Definition

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

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- Definition

Gross amount of debt extinguished.

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No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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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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- Definition

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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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Note 6 - Long-term Debt (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Long-Term Line of Credit	$ 1,041,800		$ 1,041,800		$ 1,187,800
Gain (Loss) on Extinguishment of Debt	(0)	$ (0)	(0)	$ (19,809)
Revolving Credit Facility [Member]
Debt Instrument, Face Amount	175,000		175,000
Bank Credit Facility [Member]
Line of Credit Facility, Remaining Borrowing Capacity	1,208,800		1,208,800
Gain (Loss) on Extinguishment of Debt				3,300
Deferred Debt Issuance Cost, Writeoff				3,300
Bank Credit Facility [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	1,450,000		1,450,000
Bank Credit Facility [Member] \| Letter of Credit [Member]
Long-Term Line of Credit	13,400		13,400
Swing Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 52,800		$ 52,800
Senior Notes [Member] \| Senior Note 8.625% Due 2025 [Member]
Gain (Loss) on Extinguishment of Debt				(16,500)
Extinguishment of Debt, Amount				$ 300,000
Debt Instrument, Interest Rate, Stated Percentage		8.625%		8.625%
Gain (Loss) on Extinguishment of Debt, before Debt Issuance Cost Writeoff				$ (12,900)
Deferred Debt Issuance Cost, Writeoff				$ 3,600