Income Taxes (Provision) Benefit for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Current Income Tax Expense (Benefit) [Abstract]
Federal	$ (366)	$ (210)	$ 475
State	355	(65)	137
Foreign	6,585	4,964	(2,731)
Total current	6,574	4,689	(2,119)
Deferred Income Tax Expense (Benefit) [Abstract]
Federal and state	1,333	350	695
Foreign	1,603	(2,338)	361
Total deferred	2,936	(1,988)	1,056
Provision (benefit) for income taxes	$ 9,510	$ 2,701	$ (1,063)