Income Taxes (Tables)

6 Months Ended

Jul. 31, 2016

Income Tax Disclosure [Abstract]

Provision for Income Taxes

The provision for income taxes was as follows:

	Three months ended July 31,						Six months ended July 31,
	2016			2015			2016			2015
Income tax expense (benefit)	$	(2,239	)	$	4,071		$	(4,117	)	$	2,559
Effective tax rate	(186.9		)%	11.7		%	29.2		%	11.3		%