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Segment information Total net revenues by geographic region (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Oct. 01, 2017 | Sep. 30, 2018 | Oct. 01, 2017
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | $ 609,672 | $ 534,703 | $ 1,806,768 | $ 1,551,197
United States |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 365,271 | 306,763 | 1,066,095 | 903,201
Europe |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 160,498 | 148,808 | 500,697 | 434,223
Asia |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 60,414 | 59,169 | 170,458 | 156,074
All Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | $ 23,489 | $ 19,963 | $ 69,518 | $ 57,699

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- Definition Amount, excluding 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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