COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
COMMITMENTS AND CONTINGENCIES [Abstract]
Total rent expense	$ 5.0	$ 5.6	$ 5.8
Future minimum rental payments under non-cancelable operating lease [Abstract]
2017	5.4
2018	4.7
2019	3.5
2020	1.7
2021	0.6
Thereafter	0.0
Total future minimum payments due	15.9
Other non-cancelable contractual obligations	$ 14.0