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Employee Benefit Plans - Net unfunded status (Details) - Foreign Plan - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 15,415 $ 17,394 $ 17,290
Projected benefit obligation (17,715) (24,855) $ (27,431)
Net unfunded benefit obligation $ (2,300) $ (7,461)