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Non-Current Other Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Defined benefit pension obligations, net (note 10) $ 16,262 $ 10,395
Other non-current liabilities 25,599 15,971
Non-current other liabilities (Note 9) $ 41,861 $ 26,366