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Segment and Geographic Information - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 450,557	$ 426,449	$ 307,651
Long-lived assets	143,657	134,526	128,555
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	119,781	120,523	97,727
Long-lived assets	120,808	114,892	111,488
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	199,127	195,214	113,126
Long-lived assets	12,498	10,941	5,059
Greater China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	54,137	38,184	29,453
Long-lived assets	873	858	865
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	77,512	72,528	67,345
Long-lived assets	$ 9,478	$ 7,835	$ 11,143

X

- 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

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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.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and 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(a))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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