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Long-Term Debt LONG-TERM DEBT (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
Long-term debt, net of unamortized discounts, premiums, and debt issuance costs totaling $7.9 million and $17.8 million as of December 31, 2021 and December 31, 2020, respectively, consists of the following:

December 31,
20212020
(in thousands)
Revolving credit facility due November 2026$— $168,000 
1.125% Convertible Notes due September 2021— 193,014 
6.125% Senior Notes due September 2024198,674 396,368 
6.25% Senior Notes due December 2025— 103,204 
5.75% Senior Notes due May 2026743,410 741,976 
Total debt, net of unamortized discount, premium and debt issuance costs942,084 1,602,562 
Less: Current portion of long-term debt— 193,014 
Total long-term debt$942,084 $1,409,548