STOCKHOLDERS' EQUITY - Weighted Average Fair Value of Warrant and Options Granted (Detail) - Employee Stock Options and Warrants	12 Months Ended
	Dec. 31, 2014 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price lower than the market price	$ 0
Exercise price equaled the market price	0
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price exceeded the market price	8.15
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price exceeded the market price	$ 6.92