Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 31, 2011	Sep. 30, 2011
Goodwill [Roll Forward]
Goodwill, gross	$ 88,462	$ 89,295
Accumulated impairment losses	(70,671)	(70,671)
Goodwill, net	17,791	18,624
Effect of changes in currency translation	112	(833)
Goodwill, gross	88,574	88,462
Accumulated impairment losses	(70,671)	(70,671)
Goodwill, net	17,903	17,791
License [Member]
Goodwill [Roll Forward]
Goodwill, gross	68,042	68,049
Accumulated impairment losses	(65,569)	(65,569)
Goodwill, net	2,473	2,480
Effect of changes in currency translation	(5)	(7)
Goodwill, gross	68,037	68,042
Accumulated impairment losses	(65,569)	(65,569)
Goodwill, net	2,468	2,473
Maintenance and Training [Member]
Goodwill [Roll Forward]
Goodwill, gross	15,318	16,144
Accumulated impairment losses	0	0
Goodwill, net	15,318	16,144
Effect of changes in currency translation	117	826
Goodwill, gross	15,435	15,318
Accumulated impairment losses	0	0
Goodwill, net	15,435	15,318
Professional Services [Member]
Goodwill [Roll Forward]
Goodwill, gross	5,102	5,102
Accumulated impairment losses	(5,102)	(5,102)
Goodwill, net	0	0
Effect of changes in currency translation	0	0
Goodwill, gross	5,102	5,102
Accumulated impairment losses	(5,102)	(5,102)
Goodwill, net	$ 0	$ 0

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph l

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 34

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details