NET INCOME PER SHARE (Tables)

3 Months Ended

Mar. 31, 2019

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):

	Three Months Ended March 31,
	2019	2018
Weighted-average number of basic common shares outstanding	45,007	48,349
Weighted-average dilutive stock options, restricted stock units and performance share units	229	282
Assumed conversion of Convertible Senior Notes	200	574
Weighted-average number of diluted common and common equivalent shares outstanding	45,436	49,205
Anti-dilutive potential common shares	1,282	1,432