Supplemental Cash Flow Information (Tables)

12 Months Ended

Jan. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Schedule of Supplemental Information to Consolidated Statements of Cash Flows

The following is provided as supplemental information to the consolidated statements of cash flows (in thousands):

	Fiscal Year Ended January 31,
	2018		2017		2016
Cash paid during the year for:
Interest	$	1,223	$	1,121	$	797
Income taxes, net	$	20,366	$	22,768	$	22,500
Supplemental disclosures of non-cash investing    activities:
Additions to property, plant and equipment    included in accrued liabilities	$	—	$	4	$	—