Earnings Per Share - Summary of BCF Resulting from Issuance of Preferred Shares (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]
Total common shares that may be issued upon conversion of preferred shares	7,942,000
Intrinsic value (difference between consideration allocated to preferred stock upon conversion at $2.75 per share and market price of $3.60 per share on March 22, 2013)	$ 0.85
Beneficial conversion feature	$ 6,750,700