Income Taxes (Tables)

9 Months Ended

Oct. 31, 2017

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,
	2017			2016			2017			2016
	(in thousands)
Income before income taxes	$	15,437		$	29,802		$	23,736		$	40,610
Provision for income taxes		3,713		757				6,145			1,150
Effective tax rate	24.1		%	2.5		%	25.9		%	2.8		%