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Employee Benefit Plans - Actuarial Assumptions (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Document Fiscal Year Focus 2021    
UNITED KINGDOM      
Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 1.84% 1.28%  
Average wage increase 4.65% 4.20%  
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 1.28% 2.00% 2.80%
Average wage increase 4.20% 4.25% 4.40%
Expected return on plan assets 4.34% 4.35% 4.82%
TAIWAN, PROVINCE OF CHINA      
Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 0.75% 0.25%  
Average wage increase 4.00% 4.00%  
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 0.25% 0.75% 1.25%
Average wage increase 4.00% 4.00% 4.25%
Expected return on plan assets 3.50% 3.75% 2.00%
PHILIPPINES      
Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 5.25% 4.00%  
Average wage increase 4.00% 4.00%  
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 4.00% 5.00% 8.25%
Average wage increase 4.00% 5.00% 6.00%
Foreign Plan [Member]      
Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 1.83% 1.27%  
Average wage increase 4.59% 4.18%  
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 1.27% 1.97% 2.78%
Average wage increase 4.18% 4.24% 4.41%
Expected return on plan assets 4.32% 4.33% 4.72%