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Debt (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2020
Dec. 31, 2021
Debt Instrument [Line Items]    
Unamortized discounts $ 3,031 $ 2,381
Debt instrument maturity date 2030  
Term Loans [Member]    
Debt Instrument [Line Items]    
Unamortized discounts   2,400
Long-term Debt, Gross   $ 100,000
Debt instrument maturity date   2025
Deltic [Member] | Term Loans [Member]    
Debt Instrument [Line Items]    
Unamortized discounts   $ 4,900