Note 13 - Debt (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31,
	2020		2019
Debt:
Term Loan B due in September 2024 (Principal of $270,188 and $272,938 less Unamortized Discount of $938 and $1,187, respectively, 4.65% and 6.30% Weighted Average Interest Rate, respectively)	$	269,250	$	271,751
11.00% Senior Secured Second Lien Notes due November 2025		167,147		221,628
MEDCO Revenue Bonds in Series due September 2025 at 5.75%		102,865		102,865
Term Loan A due in March 2023 (5.50% and 5.55% Weighted Average Interest Rate, respectively)		66,250		88,750
Other Asset-Backed Financing Arrangements		2,813		9,289
Advance Royalty Commitments (13.68% and 10.78% Weighted Average Interest Rate, respectively)		2,185		1,895
Less: Unamortized Debt Issuance Costs		9,921		10,323
		600,589		685,855
Less: Amounts Due in One Year*		33,731		32,053
Long-Term Debt	$	566,858	$	653,802

Schedule of Maturities of Long-term Debt [Table Text Block]

Year ended December 31,	Amount
2021	$	33,731
2022		36,348
2023		12,526
2024		257,891
2025		270,184
Thereafter		768
Total Long-Term Debt Maturities	$	611,448