Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

Schedule of long-term debt

Long-term debt consists of the following (in thousands):

	December 31,
	2022		2021
2022 Notes (matured May 2022)	$	—	$	35,000
2023 Notes (mature September 2023)		30,000		30,000
2026 Notes (mature February 2026)		200,000		200,000
MARAD Debt (matures February 2027)		40,913		48,850
Unamortized debt issuance costs		(6,838)		(8,840)
Total debt		264,075		305,010
Less current maturities		(38,200)		(42,873)
Long-term debt	$	225,875	$	262,137

Schedule of maturities of long-term debt outstanding

Scheduled maturities of our long-term debt outstanding as of December 31, 2022 are as follows (in thousands):

	2023		2026		MARAD
	Notes		Notes		Debt		Total
Less than one year	$	30,000	$	—	$	8,333	$	38,333
One to two years		—		—		8,749		8,749
Two to three years		—		—		9,186		9,186
Three to four years		—		200,000		9,644		209,644
Four to five years		—		—		5,001		5,001
Gross debt		30,000		200,000		40,913		270,913
Unamortized debt issuance costs (1)		(133)		(4,632)		(2,073)		(6,838)
Total debt		29,867		195,368		38,840		264,075
Less current maturities		(29,867)		—		(8,333)		(38,200)
Long-term debt	$	—	$	195,368	$	30,507	$	225,875

(1) Debt issuance costs are amortized to interest expense over the term of the applicable debt agreement.

Schedule of components of net interest expense

The following table details the components of our net interest expense (in thousands):

	Year Ended December 31,
	2022		2021		2020
Interest expense	$	20,176	$	23,489	$	30,538
Capitalized interest		—		—		(1,182)
Interest income		(1,226)		(288)		(825)
Net interest expense	$	18,950	$	23,201	$	28,531