Income Tax Effective tax rate (Tables)

9 Months Ended

Oct. 31, 2018

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				Nine Months Ended
	October 31, 2018		October 31, 2017		October 31, 2018		October 31, 2017
Effective tax rate	8.6	%	32.6	%	15.6	%	31.3	%

discrete tax benefit (expense) [Table Text Block]

The Company’s effective tax rates, excluding discrete items, in the three- and nine-month periods ended October 31, 2018 were 18.7 percent and 19.3 percent, respectively. These effective tax rates were approximately 14 and 11 percentage points lower than the three- and nine-month periods ended October 31, 2017, resulting in a lower tax expense of $1,971 and $6,320, respectively.

In addition, net favorable discrete items in the third quarter of fiscal year 2019 lowered tax expense by $1,440. Favorable discrete tax items for the current year nine-month period lowered tax expense by $2,129. The Company’s total discrete items were as follows:

	Three Months Ended					Nine Months Ended
	October 31, 2018		October 31, 2017			October 31, 2018		October 31, 2017
Total discrete tax benefit (expense), net	$	1,440	$	(9	)	$	2,129	$	(521	)