SHARE REPURCHASE PROGRAMS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2017
Accelerated Share Repurchases [Line Items]
Common stock repurchases	$ 7,064	$ 4,299	$ 21,220	$ 17,221
December 2017 Program
Accelerated Share Repurchases [Line Items]
Common stock repurchases			$ 21,000	$ 17,000
Common Stock
Accelerated Share Repurchases [Line Items]
Repurchased and retired shares (in shares)	119,270	63,091	345,114	234,395
Common stock repurchases	$ 60	$ 31	$ 173	$ 117
Common Stock | December 2017 Program
Accelerated Share Repurchases [Line Items]
Repurchased and retired shares (in shares)			345,000	234,000
December 2017 Program
Accelerated Share Repurchases [Line Items]
Maximum number of share repurchases authorization (in shares)					1,500,000