Stockholder's Equity - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended
	Aug. 28, 2013	Oct. 31, 2013	Aug. 27, 2013	Jan. 31, 2013
Equity [Abstract]
Common stock, shares authorized	30,000,000	30,000,000	195,000,000	195,000,000
Franchise annual tax	$ 180
Tax reduction	100
Tax payable	$ 46