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Long-Term Debt - Debt Covenant Compliance (Narrative) (Details) - CEI Revolving Credit Facility and CEI Term Loan A
Mar. 31, 2024
Period One  
Long-term debt  
Leverage ratio, maximum 7.25
Debt instrument, covenant, fixed charge coverage ratio, minimum 1.75
Period Two  
Long-term debt  
Leverage ratio, maximum 6.50
Debt instrument, covenant, fixed charge coverage ratio, minimum 2.0