Retirement Benefits (Schedule of Expected Benefit Payments) (Details) (USD $) In Thousands	Sep. 30, 2011
Pension Plans, Defined Benefit [Member]
2012	$ 5,577
2013	6,254
2014	6,737
2015	7,657
2016	7,954
2017 - 2021	51,771
United States Pension Plans of US Entity, Defined Benefit [Member]
2012	3,109
2013	3,581
2014	4,154
2015	4,732
2016	5,250
2017 - 2021	36,000
Foreign Pension Plans, Defined Benefit [Member]
2012	2,468
2013	2,673
2014	2,583
2015	2,925
2016	2,704
2017 - 2021	$ 15,771

The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position).

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant