Commitments and Contingencies - Additional Information (Detail)	1 Months Ended
	Apr. 30, 2016 USD ($)	Jul. 31, 2013 USD ($)	Sep. 30, 2016 Claim
Loss Contingencies [Line Items]
Compensatory damages sought	$ 15,000,000
Punitive damages	$ 50,000,000
Minimum
Loss Contingencies [Line Items]
Compensatory damages sought		$ 8,800,000
Debtor’s principals
Loss Contingencies [Line Items]
Compensatory damages sought		2,800,000
License fee
Loss Contingencies [Line Items]
Compensatory damages sought		$ 6,000,000
Class Actions
Loss Contingencies [Line Items]
Number of consolidated claims | Claim			3