STOCK-BASED COMPENSATION - SCHEDULE OF STANDARD AND MARKET-BASED STOCK OPTIONS ACTIVITY (Detail)	3 Months Ended
	Mar. 31, 2016 USD ($) $ / shares shares
Standard Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Beginning outstanding balance	3,596,533
Granted	344,200
Exercised	(261,421)
Forfeited	(213,831)
Expired	(9,237)
Ending outstanding balance	3,456,244
Aggregate intrinsic value of options exercised (in dollars) | $	$ 650,000
Weighted average fair value of options granted (in dollars per share) | $ / shares	$ 4.05
Market Condition Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Beginning outstanding balance	200,000
Granted	75,000
Exercised	0
Forfeited and cancelled	(50,000)
Ending outstanding balance	225,000
Aggregate intrinsic value of options exercised (in dollars) | $	$ 0
Weighted average fair value of options granted (in dollars per share) | $ / shares	$ 3.68