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v3.20.2

Revenues - Information about Operations in Different Geographic Areas (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 1,011,922 | $ 1,289,412 | $ 2,214,140 | $ 2,577,103
United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 528,126 | 676,447 | 1,169,360 | 1,340,593
United Kingdom |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 36,179 | 45,370 | 84,110 | 94,685
European Union countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 159,228 | 204,197 | 353,670 | 413,401
Asia |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 208,726 | 233,864 | 417,301 | 474,822
Other foreign countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 79,663 | 129,534 | 189,699 | 253,602
International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 483,796 | 612,965 | 1,044,780 | 1,236,510
Non-US |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 563,100 | 322,100 | 868,400 | 647,500
Electronic Instruments Group |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 647,882 | 820,247 | 1,422,107 | 1,627,158
Electronic Instruments Group | United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 338,757 | 425,543 | 745,302 | 828,935
Electronic Instruments Group | United Kingdom |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 13,427 | 12,920 | 28,220 | 28,347
Electronic Instruments Group | European Union countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 79,901 | 100,835 | 185,577 | 203,620
Electronic Instruments Group | Asia |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 161,190 | 185,287 | 325,935 | 379,134
Electronic Instruments Group | Other foreign countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 54,607 | 95,662 | 137,073 | 187,122
Electronic Instruments Group | International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 309,125 | 394,704 | 676,805 | 798,223
Electromechanical Group |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 364,040 | 469,165 | 792,033 | 949,945
Electromechanical Group | United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 189,369 | 250,904 | 424,058 | 511,658
Electromechanical Group | United Kingdom |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 22,752 | 32,450 | 55,890 | 66,338
Electromechanical Group | European Union countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 79,327 | 103,362 | 168,093 | 209,781
Electromechanical Group | Asia |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 47,536 | 48,577 | 91,366 | 95,688
Electromechanical Group | Other foreign countries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 25,056 | 33,872 | 52,626 | 66,480
Electromechanical Group | International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 174,671 | $ 218,261 | $ 367,975 | $ 438,287

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