Shareholders' Equity - Summary of Shares of Common Stock Reserved for Future Issuance under Plans (Detail)	Jun. 30, 2014	Dec. 31, 2013
Common Stock Number Of Shares Par Value And Other Disclosures [Abstract]
Stock options outstanding	1,325,402	1,515,621
Restricted stock units outstanding	157,610
Stock awards available for future grant	1,012,556
Common stock reserved for future issuance	2,495,568

Stock options available for future grant.

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Aggregate number of common shares reserved for future issuance.

+ References

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

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Number of options outstanding, including both vested and non-vested options.

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