NET INCOME PER SHARE Earnings Per Share (Details) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Net Loss Per Share [Line Items]
Anti-dilutive potential common shares (in thousands of shares)	3,642	3,822
Options
Antidilutive Securities Excluded from Computation of Net Loss Per Share [Line Items]
Anti-dilutive potential common shares (in thousands of shares)	465	599
Non-vested restricted stock units
Antidilutive Securities Excluded from Computation of Net Loss Per Share [Line Items]
Anti-dilutive potential common shares (in thousands of shares)	3,177	3,223