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Employee Benefit Plans - Summary of Net Periodic Cost of Pension and Postretirement Benefit Plans (Details) - Pension Plan - Non-U.S. - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 104,000   $ 318,000  
Interest cost 5,000   16,000  
Return on plan assets (4,000)   (11,000)  
Net periodic pension cost 105,000 $ 0 323,000 $ 0
Total recognized in net periodic benefit cost $ 105,000   $ 323,000  
Expected long-term rate of return on plan assets 0.50%   0.50%