NET INCOME PER SHARE - Basic and Diluted Net Income Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Basic net income per share:
Net income (loss)	$ 2,206	$ (6,028)
Weighted average common shares outstanding (in shares)	32,275	27,796
Basic net income per common share (in dollars per share)	$ 0.07	$ (0.22)
Diluted net income per share:
Net income (loss)	$ 2,206	$ (6,028)
Weighted average common shares outstanding (in shares)	32,275	27,796
Effect of dilutive securities:
Stock options and restricted stock (in shares)	493	0
Weighted average common shares for diluted earnings per share (in shares)	32,768	27,796
Diluted net income per common share (in dollars per share)	$ 0.07	$ (0.22)