Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 30, 2013	Apr. 30, 2012
Summary of net revenues by geographic region
Software licenses	$ 4,587	$ 7,929
Total revenue	42,304	47,919
North America [Member]
Summary of net revenues by geographic region
Software licenses	1,973	5,442
Maintenance and professional services	25,104	26,940
Total revenue	27,077	32,382
Europe, Asia and South America [Member]
Summary of net revenues by geographic region
Software licenses	2,615	2,487
Maintenance and professional services	12,612	13,050
Total revenue	$ 15,227	$ 15,537

Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Name:	us-gaap_LicensesRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration