Earnings per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
NET (LOSS) INCOME	$ (11,073)	$ 347	$ (12,529)	$ 314
Denominator:
Common shares outstanding	15,979	18,257	16,149	18,284
Earnings per common share - basic
Net (loss) income	$ (0.69)	$ 0.02	$ (0.78)	$ 0.02
Denominator:
Common shares outstanding	15,979	18,257	16,149	18,284
Common stock option grants	0	11		28
Total shares	15,979	18,408	16,149	18,498
Earnings per common share - diluted
Net (loss) income	$ (0.69)	$ 0.02	$ (0.78)	$ 0.02
Restricted Stock [Member]
Denominator:
Shares subject to vesting	0	140		186