Income Taxes (Tables)

3 Months Ended

Apr. 30, 2015

Income Tax Disclosure [Abstract]

Summary of Details Income Taxes

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

	Three Months Ended April 30,
	2015			2014
	(in thousands)
Income before income taxes	$	20,352		$	5,976
Provision for income taxes		1,498			716
Effective tax rate		7.4	%		12.0	%