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ACCOUNTING POLICIES - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Supplemental disclosures of cash flow information:      
Interest paid, net of amounts capitalized $ 1,775 $ 1,808 $ 264
Income taxes paid (refunded), net 2,262 1,452 (1,259)
Non-cash investing and financing activities:      
Proceeds from sale of common stock included in accounts receivable 0 0 2,848
Recognition of right-of-use assets upon adoption of ASC 842 $ 0 $ 0 $ 29,965