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v3.20.1

Revenues - Information about Operations in Different Geographic Areas (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 1,202,218 |  | $ 1,287,691 |
United States [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 641,234 |  | 664,146 |
United Kingdom [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 47,931 | [1] | 49,315 | [2]
European Union countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 194,442 | [1] | 209,204 | [2]
Asia [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 208,575 | [1] | 240,958 | [2]
Other foreign countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 110,036 | [1] | 124,068 | [2]
International [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 560,984 | [1] | 623,545 | [2]
Electronic Instruments Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 774,225 |  | 806,911 |
Electronic Instruments Group [Member] | United States [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 406,545 |  | 403,392 |
Electronic Instruments Group [Member] | United Kingdom [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 14,793 | [1] | 15,427 | [2]
Electronic Instruments Group [Member] | European Union countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 105,676 | [1] | 102,785 | [2]
Electronic Instruments Group [Member] | Asia [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 164,745 | [1] | 193,847 | [2]
Electronic Instruments Group [Member] | Other foreign countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 82,466 | [1] | 91,460 | [2]
Electronic Instruments Group [Member] | International [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 367,680 | [1] | 403,519 | [2]
Electromechanical Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 427,993 |  | 480,780 |
Electromechanical Group [Member] | United States [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 234,689 |  | 260,754 |
Electromechanical Group [Member] | United Kingdom [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 33,138 | [1] | 33,888 | [2]
Electromechanical Group [Member] | European Union countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 88,766 | [1] | 106,419 | [2]
Electromechanical Group [Member] | Asia [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 43,830 | [1] | 47,111 | [2]
Electromechanical Group [Member] | Other foreign countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 27,570 | [1] | 32,608 | [2]
Electromechanical Group [Member] | International [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 193,304 | [1] | $ 220,026 | [2]
[1] | Includes U.S. export sales of $305.2 million.
[2] | Includes U.S. export sales of $325.4 million.

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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 + Details
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