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Retirement Benefits (Schedule of Future Postretirement Company Contributions) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2016 USD ($)
United States Pension Plans of US Entity, Defined Benefit [Member]
2017	$ 0
United Kingdom Plan, Defined Benefit [Member]
2017	425
Japan Plan, Defined Benefit [Member]
2017	288
Other Postretirement Benefit Plans, Defined Benefit [Member]
2017	4,039
2018	4,066
2019	4,096
2020	4,080
2021	4,060
2022 - 2026	$ 19,306

X

- Definition

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.

+ References

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=65897934&loc=d3e1928-114920

+ Details

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Period Type:	duration

X

- 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.

+ Details

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X

- 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.

+ Details

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X

- 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.

+ Details

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X

- 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.

+ Details

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X

- 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.

+ Details

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X

- Details

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- Details

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