Preferred Stock Redemption - Additional Information (Detail) - Series B Preferred Stock [Member]	Feb. 01, 2016 USD ($) $ / shares shares
Schedule of Capitalization, Equity [Line Items]
Preferred stock, shares outstanding | shares	12,500
Preferred stock, liquidation value | $ / shares	$ 1,000
Preferred stock, redemption price | $	$ 12,510,416.67