Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Schedule of maturities of long-term debt outstanding

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

	2022		2023		2026		MARAD
	Notes		Notes		Notes		Debt		Total
Less than one year	$	35,000	$	—	$	—	$	8,133	$	43,133
One to two years		—		30,000		—		8,539		38,539
Two to three years		—		—		—		8,965		8,965
Three to four years		—		—		200,000		9,412		209,412
Four to five years		—		—		—		9,881		9,881
Gross debt		35,000		30,000		200,000		44,930		309,930
Unamortized debt issuance costs (1)		(16)		(270)		(5,592)		(2,439)		(8,317)
Total debt		34,984		29,730		194,408		42,491		301,613
Less current maturities		(34,984)		—		—		(8,133)		(43,117)
Long-term debt	$	—	$	29,730	$	194,408	$	34,358	$	258,496

(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):

	Three Months Ended
	March 31,
	2022		2021
Interest expense	$	5,307	$	6,112
Interest income		(133)		(59)
Net interest expense	$	5,174	$	6,053