Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Mar. 19, 2012
Income Tax Disclosure [Abstract]
Net income	$ (16,645,000)	$ (3,919,000)	$ 61,314,000	$ (71,901,000)	$ (61,833,000)
Percentage of net operating loss carry forwards	100.00%		100.00%
Valuation allowance recorded to be reduce to	0.00%		0.00%
Income tax expense or benefit					0
Income tax at the federal statutory rate of 35%			35.00%
Income tax paid			$ 0		$ 0
Valuation allowance equal to net deferred federal income tax asset	100.00%		100.00%		100.00%
Abandoned stock						$ 8,370,000,000
Available and utilizable NOL					$ 6,000,000,000
NOLs expiration date			2031
Reserves for uncertain federal income tax positions	$ 0		$ 0
Income tax interest income, expense or penalties			$ 0		$ 0
Income tax examination, year under examination			2011