Income Tax Effective tax rate (Tables)

3 Months Ended

Apr. 30, 2019

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The Company’s effective tax rates were as follows:

	Three Months Ended
	April 30, 2019		April 30, 2018
Effective tax rate	12.2	%	18.6	%

discrete tax benefit (expense) [Table Text Block]

The Company’s total discrete tax items for both three-month periods in the table below relate to the vesting or settlement of equity awards.

	Three Months Ended
	April 30, 2019		April 30, 2018
Total discrete tax benefit	$	1,168	$	243