Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]
Net income	$ 102	$ 3
Basic weighted average shares outstanding	49,277	46,264
Effect of potentially dilutive securities	4,192	4,659
Diluted weighted average shares outstanding	53,469	50,923
Basic EPS	$ 0.00	$ 0.00
Diluted EPS	$ 0.00	$ 0.00