NET INCOME PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Reconciliation of the weighted average number of shares outstanding used in calculating diluted earnings per share

A reconciliation of the weighted-average number of shares outstanding used in calculating diluted earnings per share is as follows (in thousands):

	For the Year Ended December 31,
	2016	2015	2014
Weighted-average number of basic common shares outstanding	49,491	50,940	52,301
Weighted-average dilutive stock options, restricted stock units and performance share units	238	395	340
Assumed conversion of Convertible Senior Notes	334	258	382
Weighted-average number of diluted common and common equivalent shares outstanding	50,063	51,593	53,023
Anti-dilutive potential common shares	2,443	2,563	2,574