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Debt (Tables)
 6 Months Ended
Jun. 30, 2022
Debt Disclosure [Abstract]  
Schedule of Debt
Our obligations under debt arrangements consisted of the following:
 June 30, 2022December 31, 2021
 PrincipalUnamortized Premium, Discount and Debt Issuance CostsNet ValuePrincipalUnamortized Premium and Debt Issuance CostsNet Value
Senior secured credit facility-Revolving Loan(1)
$34,600 $— $34,600 $49,000 $— $49,000 
5.625% senior unsecured notes due 2024
341,135 1,678 339,457 341,135 2,106 339,029 
6.500% senior unsecured notes due 2025
534,834 3,858 530,976 534,834 4,452 530,382 
6.250% senior unsecured notes due 2026
344,310 2,890 341,420 359,799 3,410 356,389 
8.000% senior unsecured notes due 2027
1,000,000 5,809 994,191 1,000,000 6,592 993,408 
7.750% senior unsecured notes due 2028
690,890 8,512 682,378 720,975 9,678 711,297 
5.875% Alkali senior secured notes due 2042
425,000 22,796 402,204 — — — 
Total long-term debt$3,370,769 $45,543 $3,325,226 $3,005,743 $26,238 $2,979,505 
(1)    Unamortized debt issuance costs associated with our Revolving Loan, as defined below (included in “Other Assets, net of amortization” on the Unaudited Condensed Consolidated Balance Sheets), under our senior secured credit facility were $3.7 million and $4.7 million as of June 30, 2022 and December 31, 2021, respectively.