EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Computation of Basic Earnings and Diluted Earnings Per Share Data

Basic earnings and diluted earnings per share data were computed as follows:

	Years Ended December 31,
	2013		2012		2011
Numerator for basic and diluted earnings per share:
Net income	$	39,101	$	32,994	$	27,557
Denominator:
Weighted-average basic common shares outstanding		31,891		30,327		31,267
Assumed conversion of dilutive securities:
Stock options		2,699		2,589		1,887
Denominator for diluted earnings per share—Adjusted weighted-average shares		34,590		32,916		33,154
Earnings per common share:
Basic	$	1.23	$	1.09	$	0.88
Diluted	$	1.13	$	1.00	$	0.83