Business Segments and International Operations (Revenue from External Customers by Revenue Type) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Nov. 30, 2014	Aug. 31, 2014	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Segment Reporting [Abstract]
Software licenses									$ 117,801us-gaap_LicensesRevenue	$ 122,312us-gaap_LicensesRevenue	$ 106,626us-gaap_LicensesRevenue
Maintenance									202,496us-gaap_MaintenanceRevenue	202,857us-gaap_MaintenanceRevenue	202,691us-gaap_MaintenanceRevenue
Professional services									12,236us-gaap_TechnologyServicesRevenue	8,827us-gaap_TechnologyServicesRevenue	8,295us-gaap_TechnologyServicesRevenue
Total revenue	$ 97,894us-gaap_SalesRevenueNet	$ 79,274us-gaap_SalesRevenueNet	$ 80,827us-gaap_SalesRevenueNet	$ 74,538us-gaap_SalesRevenueNet	$ 90,980us-gaap_SalesRevenueNet	$ 77,578us-gaap_SalesRevenueNet	$ 81,705us-gaap_SalesRevenueNet	$ 83,733us-gaap_SalesRevenueNet	$ 332,533us-gaap_SalesRevenueNet	$ 333,996us-gaap_SalesRevenueNet	$ 317,612us-gaap_SalesRevenueNet

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.

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

- Definition

Revenue derived from maintenance services provided under contracts or arrangements with clients. For example, it may include the maintenance of software, plant and equipment, and facilities.

+ References

+ Details

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

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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

- Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.

+ References

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(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 605

-Section 25

-Paragraph 76

-URI http://asc.fasb.org/extlink&oid=22169047&loc=d3e132428-111767

+ Details

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