v3.20.4
SUPPLEMENTAL CASH FLOW INFORMATION Table 1 - Changes in Current Assets and Current Liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]      
Accounts receivable $ 14,589 $ (23,480) $ 22,482
Receivable from related party 0 0 160
Inventories 1,340 (866) 3,819
Prepaid and other current assets (3,326) (5,103) 3,694
Accounts payable (25,455) 8,068 8,003
Accrued interest payable 12,922 1,632 (4,279)
Accrued liabilities 7,886 (19,740) 39,862
Taxes other than income tax 3,972 (5,276) 4,521
Changes in current assets and current liabilities $ 11,928 $ (44,765) $ 78,262