Restructuring - Additional Information (Detail)	3 Months Ended
Sep. 30, 2016 Employee
Restructuring And Related Activities [Abstract]
Number of employees impacted by workforce reduction	33
Percentage of pre-reduction headcount impacted by workforce reduction	17.00%

The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s).

No definition available.

Name:	us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration