Debt (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term Debt consists of the following at December 31:

(in thousands)	2021			2020
Variable rate term loans1	$	403,500		$	403,500
Fixed rate term loans2		290,000			290,000
Revenue bonds3		65,735			65,735
Medium-term notes4		3,000			3,000
Long-term principal		762,235			762,235
Debt issuance costs		(1,598	)		(1,857	)
Unamortized discounts		(2,381	)		(3,031	)
Total long-term debt		758,256			757,347
Less: current portion of long-term debt		(42,977	)		(39,981	)
Long-term debt	$	715,279		$	717,366

1	Variable rate term loans are at rates of one or three-month LIBOR plus a spread between 1.85% and 2.10% and mature between 2026 and 2031. At December 31, 2021, the one and three-month LIBOR rates were 0.10% and 0.13%, respectively. We have entered into interest rate swaps for these variable rate term loans to fix the interest rate. See Note 10: Derivative Instruments for additional information.
2	Fixed rate term loans are at rates between 4.05% and 4.64% and mature between 2022 and 2025.
3	Revenue bonds have a fixed rate of 2.75% and mature in 2024.
4	Medium-term notes have a fixed rate of 8.75% and were paid off upon maturity in January 2022.

Schedule of Maturities of Long-term Debt

Scheduled principal payments due on long-term debt at December 31, 2021 are as follows:

(in thousands)
2022	$	43,000
2023		40,000
2024		175,735
2025		100,000
2026		27,500
Thereafter		376,000
Total	$	762,235