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Segment and Geographic Information - Schedule of Revenue by Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue recognized	$ 179,577	$ 180,828	$ 137,601
Europe [Member]
Segment Reporting Information [Line Items]
Revenue recognized	153,669	159,123	119,559
Japan [Member] | Related Party [Member]
Segment Reporting Information [Line Items]
Revenue recognized	25,778	21,596	17,987
All other [Member]
Segment Reporting Information [Line Items]
Revenue recognized	$ 130	$ 109	$ 55

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ 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

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- Definition

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+ References

No definition available.

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