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Retirement Benefits (Schedule of estimated remaining cash contributions) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2016 USD ($)
United Kingdom Plan, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	$ 151
Japan Plan, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	0
Other Postretirement Benefit Plans, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	2,294
Minimum [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	100
Maximum [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	$ 200

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

+ References

No definition available.

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