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Benefit Plans, Amounts Recognized in Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Amounts Recognized in Consolidated Balance Sheets [Abstract]    
Current liabilities $ (458) $ (438)
Noncurrent liabilities (8,298) (8,563)
Total amounts recognized (8,756) (9,001)
Net actuarial loss recognized in accumulated other comprehensive income (loss) $ 2,198 $ 2,554