Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Jul. 31, 2013
Subsequent Event [Member]
Senior secured revolving credit facility [Member]
Subsequent Event [Line Items]      
Credit facility outstanding    $ 4,169,818 $ 350,000,000