Income Taxes (Tables)

6 Months Ended

Jul. 31, 2018

Income Tax Disclosure [Abstract]

Summary of Income Taxes

The following table provides details of income taxes for the periods indicated:

	Three Months Ended July 31,						Six Months Ended July 31,
	2018			2017			2018			2017
	(in thousands)
Income (loss) before income taxes	$	(5,950	)	$	5,529		$	(15,108	)	$	8,299
Provision for income taxes		927			2,226			1,775			2,432
Effective tax rate	(15.6%)				40.3	%	(11.7%)				29.3	%