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Revenues - Timing of Revenue Recognition (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disaggregation of Revenue [Line Items]    
Net sales $ 1,458,525 $ 1,215,742
Products transferred at a point in time    
Disaggregation of Revenue [Line Items]    
Net sales 1,225,602 1,030,283
Products and services transferred over time    
Disaggregation of Revenue [Line Items]    
Net sales 232,923 185,459
Electronic Instruments Group    
Disaggregation of Revenue [Line Items]    
Net sales 987,759 790,924
Electronic Instruments Group | Products transferred at a point in time    
Disaggregation of Revenue [Line Items]    
Net sales 812,948 647,252
Electronic Instruments Group | Products and services transferred over time    
Disaggregation of Revenue [Line Items]    
Net sales 174,811 143,672
Electromechanical Group    
Disaggregation of Revenue [Line Items]    
Net sales 470,766 424,818
Electromechanical Group | Products transferred at a point in time    
Disaggregation of Revenue [Line Items]    
Net sales 412,654 383,031
Electromechanical Group | Products and services transferred over time    
Disaggregation of Revenue [Line Items]    
Net sales $ 58,112 $ 41,787