Schedule II (Details) (Allowance for Doubtful Accounts [Member], USD $) In Thousands	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Allowance for Doubtful Accounts [Member]
Balance at Beginning of Year	$ 2,228	$ 2,660	$ 1,648
Additions: Charged to Costs and Expenses	1,028	431	1,274
Additions: Charged to Other Accounts	159	74	1,003
Deductions	(1,093)	(937)	(1,265)
Balance at End of Year	2,322	2,228	2,660
Currency translation adjustments	$ (69)	$ (37)	$ 16

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

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