Quarterly report pursuant to Section 13 or 15(d)

Equity - Schedule of Common Stock Public Offerings (Detail)

v2.4.0.8
Equity - Schedule of Common Stock Public Offerings (Detail) (USD $)
6 Months Ended
Apr. 23, 2013
Jun. 30, 2014
4/23/2013 Closing Date [Member]
Jun. 30, 2014
4/29/2014 Closing Date [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Public offerings of common stock, Closing Date   Apr. 23, 2013 Apr. 29, 2014
Public offerings of common stock, Shares Issued   14,152 5,750
Public offerings of common stock, Price Per Share $ 12.50 $ 12.50 $ 13.00
Public offerings of common stock, Net Proceeds   $ 160,000 $ 70,400