Retirement Benefits (Schedule of estimated remaining cash contributions) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2015
United States Pension Plans of US Entity, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	$ 21
United Kingdom Plan, Defined Benefit [Member]
Estimated future employer contributions in the currect fiscal year	417
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	$ 2,877