Pro forma Information for Business Acquisition (Detail) (NeoPhotonics Semiconductor [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
Sep. 30, 2013
NeoPhotonics Semiconductor [Member]
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Revenue	$ 220,558
Net loss	$ (18,942)
Basic and diluted net loss per share	$ (0.61)

Business acquisition pro forma earnings per share basic and diluted.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

+ Details

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