Note 7 - Debt, Credit Agreement and Leases (Tables)

6 Months Ended

Jun. 30, 2023

Table Text Block [Abstract]

Schedule of Long-Term Debt Instruments

	June 30, 2023
	Senior Notes			IQ Notes		Total
Principal	$	475,000		$	36,434	$	511,434
Unamortized discount/premium and issuance costs		(4,186	)		332		(3,854	)
Long-term debt balance	$	470,814		$	36,766	$	507,580

	December 31, 2022
	Senior Notes			IQ Notes		Total
Principal	$	475,000		$	35,614	$	510,614
Unamortized discount/premium and issuance costs		(4,640	)		392		(4,248	)
Long-term debt balance	$	470,360		$	36,006	$	506,366

Schedule of Maturities of Long Term Debt and Finance and Operating Lease Liabilities

Twelve-month period ending June 30,	Senior Notes		IQ Notes		Finance Leases			Operating Leases
2024	$	34,438	$	2,322	$	10,534		$	2,248
2025		34,438		38,604		9,532			1,283
2026		34,438		—		6,932			1,276
2027		34,438		—		4,772			1,229
2028		505,131		—		4,157			1,129
Thereafter		—		—		—			6,050
		642,883		40,926		35,927			13,215
Less: effect of discounting		—		—		(3,476	)		(3,174	)
Total	$	642,883	$	40,926	$	32,451		$	10,041