Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of maturities of long-term debt outstanding

Scheduled maturities of our long-term debt outstanding as of September 30, 2021 are as follows (in thousands):

	2022		2023		2026		MARAD
	Notes		Notes		Notes		Debt		Total
Less than one year	$	35,000	$	—	$	—	$	7,937	$	42,937
One to two years		—		30,000		—		8,333		38,333
Two to three years		—		—		—		8,749		8,749
Three to four years		—		—		—		9,186		9,186
Four to five years		—		—		200,000		9,644		209,644
Over five years		—		—		—		5,001		5,001
Gross debt		35,000		30,000		200,000		48,850		313,850
Unamortized debt issuance costs (1)		(112)		(359)		(6,203)		(2,683)		(9,357)
Total debt		34,888		29,641		193,797		46,167		304,493
Less current maturities		(34,888)		—		—		(7,937)		(42,825)
Long-term debt	$	—	$	29,641	$	193,797	$	38,230	$	261,668

(1) Debt issuance costs are amortized to interest expense over the term of the applicable debt agreement. See Note 1 for accounting changes as a result of the adoption of ASU No. 2020-06.

Schedule of components of net interest expense

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Interest expense	$	6,097	$	8,007	$	18,152	$	22,580
Capitalized interest		—		—		—		(1,182)
Interest income		(169)		(409)		(252)		(991)
Net interest expense	$	5,928	$	7,598	$	17,900	$	20,407