Two-for-One Stock Split - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	9 Months Ended
Jul. 29, 2013	Sep. 29, 2013	Sep. 29, 2013	Dec. 31, 2012
Equity [Abstract]
Common stock, par or stated value per share		$ 0.002	$ 0.002	$ 0.002
Stock split conversion ratio	2	2	2

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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Data Type:	xbrli:pureItemType
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Period Type:	duration