Subsequent Event - Additional Information (Detail) - Transition Agreement [Member] - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
Oct. 31, 2016	Sep. 30, 2016
Subsequent Event [Line Items]
Description of Transition Agreement		Pursuant to the terms of the Transition Agreement, Dr. McVicar will remain an employee of the Company as a Senior Advisor for a six-month period ending April 4, 2017 and for twelve months thereafter will receive his salary and medical benefits at the same rate in effect as of the date of the Transition Agreement.
Subsequent Event [Member]
Subsequent Event [Line Items]
Expected payment related to transition agreement	$ 750

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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