Income Taxes (Tables)

9 Months Ended

Oct. 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 October 31,						Nine Months Ended October 31,
	2018			2017			2018			2017
	(in thousands)
Income (loss) before income taxes	$	(8,429	)	$	15,437		$	(23,537	)	$	23,736
Provision for income taxes		592			3,713			2,367			6,145
Effective tax rate	(7.0)%				24.1	%	(10.1)%				25.9	%