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Geographic, Customer and Supplier Information - Sales Details of Customers Locations in Four Geographic Regions (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 47,597 | $ 43,648 | $ 54,293 | $ 46,767 | $ 50,889 | $ 60,027 | $ 65,393 | $ 65,135 | $ 192,304 | $ 241,443 | $ 201,537
Gross profit | 31,954 | $ 30,050 | $ 36,551 | $ 32,104 | 33,000 | $ 35,695 | $ 37,739 | $ 37,106 | 130,657 | 143,540 | 125,642
Long-lived assets | 7,721 |  |  |  | 3,461 |  |  |  | 7,721 | 3,461 | 3,194
Europe, Middle East, Africa (EMEA) [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 100,858 | 164,180 | 129,385
Gross profit |  |  |  |  |  |  |  |  | 65,025 | 92,721 | 78,933
Long-lived assets | 7,005 |  |  |  | 2,771 |  |  |  | 7,005 | 2,771 | 2,815
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 23,603 | 11,723 | 12,098
Gross profit |  |  |  |  |  |  |  |  | 20,555 | 9,766 | 10,143
Long-lived assets | 632 |  |  |  | 620 |  |  |  | 632 | 620 | 275
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 52,871 | 47,156 | 42,365
Gross profit |  |  |  |  |  |  |  |  | 34,202 | 28,508 | 23,996
Long-lived assets | 26 |  |  |  | 19 |  |  |  | 26 | 19 | 31
Other Countries [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 14,972 | 18,384 | 17,689
Gross profit |  |  |  |  |  |  |  |  | 10,874 | 12,545 | 13,360
Long-lived assets | $ 58 |  |  |  | $ 51 |  |  |  | $ 58 | $ 51 | $ 73

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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + 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 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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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=26872669&loc=d3e20235-122688 + Details
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