INCOME TAXES - Research and Development Tax Credits (Details) - USD ($) $ in Millions	Jan. 31, 2020	Jan. 31, 2019
INCOME TAXES
Research and development tax credit benefit		$ 16.6
Unfavorable adjustment	$ 0.4
Income tax refunds and prepaid income taxes	14.5
Prepaid Taxes		19.5
Unrecognized income tax benefits related to research and development credits	$ 5.0	$ 5.1

Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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