Income Taxes - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2015
Schedule Of Income Tax [Line Items]
Federal income taxes	$ 0
State income taxes	$ 0
Minimum percentage of ownership change that would have impact in Net operating loss carryforward	50.00%
Effect of ownership changes in net operating loss carryforward series of transactions period	3 years
Scenario, Forecast [Member]
Schedule Of Income Tax [Line Items]
Effective tax rate		0.00%