NET INCOME PER SHARE (Tables)

12 Months Ended

Dec. 31, 2015

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,
	2015	2014	2013
Weighted average number of basic common shares outstanding	50,940	52,301	50,924
Weighted average dilutive stock options, restricted stock units and performance share units	395	340	382
Assumed conversion of Convertible Senior Notes	258	382	1,107
Weighted average number of diluted common and common equivalent shares outstanding	51,593	53,023	52,413
Anti-dilutive potential common shares	2,563	2,574	2,384