Income Taxes (Tables)

9 Months Ended

Oct. 31, 2013

Income Tax Disclosure [Abstract]

Provision for Income Taxes

The provision for income taxes was comprised of the following:

	Three months ended October 31,						Nine months ended October 31,
	2013			2012			2013			2012
Income tax expense (benefit)	$	3,634		$	1,148		$	1,864		$	(835	)
Effective tax rate	13		%	3		%	4		%	(1		)%