Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Derivative Financial Instruments - Fair Value of Open and Closed Contracts Which Had Not Yet Settled (Details)

v3.20.2
Note 6 - Derivative Financial Instruments - Fair Value of Open and Closed Contracts Which Had Not Yet Settled (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Prepaid expenses and other assets [1] $ 12,354   $ 12,354   $ 7,266
Other assets (long-term) 3,692   3,692   2,653
Derivatives - current 7,921   7,921   1,785
Derivative loss (gain) 11,161 $ (5,853) (35,337) $ 41,228  
Other Noncurrent Liabilities [Member]          
Other liabilities (long-term) 6,222   6,222   0
Open Contracts and Closed Contracts Which Had Not Yet Been Settled [Member] | Prepaid Expenses and Other Current Assets [Member]          
Prepaid expenses and other assets 12,354   12,354   7,266
Open Contracts and Closed Contracts Which Had Not Yet Been Settled [Member] | Other Noncurrent Assets [Member]          
Other assets (long-term) 3,692   3,692   2,653
Open Contracts and Closed Contracts Which Had Not Yet Been Settled [Member] | Accrued Liabilities [Member]          
Derivatives - current 7,921   7,921   1,785
Open Contracts and Closed Contracts Which Had Not Yet Been Settled [Member] | Other Noncurrent Liabilities [Member]          
Other liabilities (long-term) $ 6,222   $ 6,222   $ 0
[1] Includes closed contracts which have not yet settled.