Income Taxes - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended
	May. 31, 2013	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Tax Credit Carryforward [Line Items]
Annual distribution of net taxable income for U.S. federal income tax not to apply to our earnings that we distribute (percent)		90.00%
Net taxable income subject to distribution (percent)		100.00%
Excise tax rate		4.00%
Income tax provision		$ 241,000	$ 245,000
Deferred tax assets		0		$ 0
Deferred tax liabilities		$ 0		0
Net operating losses carried forward				159,000,000
Net capital losses carried forward				$ 602,000
NOLs expiration date		Dec. 31, 2029
Internal Revenue Service [Member]
Tax Credit Carryforward [Line Items]
Net operating losses and net capital losses		$ 2,000,000
Class A Common Stock [Member]
Tax Credit Carryforward [Line Items]
Common stock, shares issued	25,875,000	285	139
Earliest Tax Year [Member]
Tax Credit Carryforward [Line Items]
Open tax year		2012
Latest Tax Year [Member]
Tax Credit Carryforward [Line Items]
Open tax year		2015