Retirement Benefits (Schedule of Future Postretirement Company Contributions) (Details) $ in Thousands	12 Months Ended
Sep. 30, 2015 USD ($)
United States Pension Plans of US Entity, Defined Benefit [Member]
2016	$ 24
United Kingdom Plan, Defined Benefit [Member]
2016	544
Japan Plan, Defined Benefit [Member]
2016	251
Other Postretirement Benefit Plans, Defined Benefit [Member]
2016	4,103
2017	4,086
2018	4,082
2019	4,097
2020	4,066
2021 - 2025	$ 19,476

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

The employer's estimate, of the aggregate contributions expected to be paid to the plan after year five. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

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- Definition

The employer's estimate, of contributions expected to be paid to the plan in year five. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

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- Definition

The employer's estimate, of contributions expected to be paid to the plan in year four. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

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- Definition

The employer's estimate, of contributions expected to be paid to the plan in year three. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

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- Definition

The employer's estimate, of contributions expected to be paid to the plan in year two. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

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