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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
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Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 50,889 | $ 60,027 | $ 65,393 | $ 65,135 | $ 62,426 | $ 52,633 | $ 47,654 | $ 38,823 | $ 241,443 | $ 201,537 | $ 155,047
Gross profit | 33,648 | $ 36,272 | $ 38,498 | $ 37,674 | 35,354 | $ 35,595 | $ 31,021 | $ 25,796 | 146,092 | 127,766 | 99,871
Long-lived assets | 122,284 |  |  |  | 38,220 |  |  |  | 122,284 | 38,220 | 43,898
Europe, Middle East, Africa (EMEA) [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 164,180 | 129,385 | 95,794
Gross profit |  |  |  |  |  |  |  |  | 94,369 | 80,267 | 62,529
Long-lived assets | 29,646 |  |  |  | 35,086 |  |  |  | 29,646 | 35,086 | 40,198
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 11,723 | 12,098 | 11,781
Gross profit |  |  |  |  |  |  |  |  | 9,940 | 10,143 | 9,477
Long-lived assets | 92,568 |  |  |  | 3,031 |  |  |  | 92,568 | 3,031 | 3,496
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 47,156 | 42,365 | 27,356
Gross profit |  |  |  |  |  |  |  |  | 29,015 | 23,996 | 14,552
Long-lived assets | 19 |  |  |  | 31 |  |  |  | 19 | 31 | 43
Other Countries [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic And Business Segment Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 18,384 | 17,689 | 20,116
Gross profit |  |  |  |  |  |  |  |  | 12,768 | 13,360 | 13,313
Long-lived assets | $ 51 |  |  |  | $ 72 |  |  |  | $ 51 | $ 72 | $ 161

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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 Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599 + 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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