NET INCOME PER SHARE (Tables)

6 Months Ended

Jun. 30, 2020

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 net income (loss) per share is as follows (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2020	2019	2020	2019
Weighted-average number of basic common shares outstanding	40,922	43,251	41,007	44,124
Weighted-average dilutive stock options, restricted stock units and performance share units	73	146	—	188
Assumed conversion of convertible senior notes	—	204	—	202
Weighted-average number of diluted common and common equivalent shares outstanding	40,995	43,601	41,007	44,514