INCOME TAXES INCOME TAXES - PROVISION FOR INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Current provision (benefit) for income taxes
Federal	$ 4,364	$ 604	$ (2,997)
State	1,215	989	1,300
Foreign	24,308	18,120	8,289
Total current provision for income taxes	29,887	19,713	6,592
Deferred provision (benefit) for income taxes
Federal	4,734	(8,179)	2,244
State	(58)	(842)	12
Foreign	(12,209)	(7,920)	(7,896)
Total deferred benefit for income taxes	(7,533)	(16,941)	(5,640)
Total provision for income taxes	$ 22,354	$ 2,772	$ 952