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Segment Information - Net Sales by Product Family- Excluding Intercompany Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 632,470 | $ 564,304 | $ 1,162,416 | $ 1,044,168
Pointing Devices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 123,643 | 123,300 | 245,717 | 240,083
Keyboards & Combos |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 119,200 | 116,516 | 235,313 | 234,535
PC Webcams |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 27,466 | 24,307 | 53,091 | 49,569
Tablet & Other Accessories |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 30,784 | 20,614 | 54,002 | 34,499
Video Collaboration |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 46,139 | 28,581 | 81,756 | 52,491
Mobile Speakers |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 90,548 | 97,172 | 153,466 | 154,468
Audio-PC & Wearables |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 62,445 | 62,254 | 112,647 | 118,833
Gaming |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 113,722 | 79,193 | 191,430 | 135,693
Smart Home |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 18,323 | 11,807 | 34,789 | 22,974
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 200 | $ 560 | $ 205 | $ 1,023

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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