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Property, Plant and Equipment - Additional lease information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment      
Expenses relating to short-term leases $ 364 $ 162 $ 258
Expenses relating to low-value asset leases 113 342 230
Expenses relating to variable lease payments not included in the measurement of lease liabilities $ 2,920 $ 1,874 $ 2,018