Retirement Benefits (Schedule of Changes in Plan Assets and Benefit Obligations Recorded in Other Comprehensive (Income) Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Net (gain) loss arising during the period	$ (3,746)	$ (26,756)	$ 17,960
Prior service (benefit) cost	3,355	0	0
Loss (gain) due to settlement or curtailment	(7,539)	36	56
Amortization of: Net gains (losses)	(785)	(1,770)	(1,280)
Amortization of: Prior service benefit (cost)	66	90	484
Foreign currency exchange rate changes	(104)	(673)	171
Pension Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	(4,891)	(19,255)
Prior service (benefit) cost	3,355	0
Loss (gain) due to settlement or curtailment	(7,539)	36
Amortization of: Net gains (losses)	(985)	(1,838)
Amortization of: Prior service benefit (cost)	(93)	(68)
Foreign currency exchange rate changes	(107)	(673)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total	4,818	(21,870)
United States Pension Plans of US Entity, Defined Benefit [Member]
Net (gain) loss arising during the period	(4,269)	(20,604)
Prior service (benefit) cost	3,355	0
Loss (gain) due to settlement or curtailment	(6,624)	0
Amortization of: Net gains (losses)	(330)	(1,374)
Amortization of: Prior service benefit (cost)	(97)	(75)
Foreign currency exchange rate changes	0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total	5,283	(22,053)
Foreign Pension Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	(622)	1,349
Prior service (benefit) cost	0	0
Loss (gain) due to settlement or curtailment	(915)	36
Amortization of: Net gains (losses)	(655)	(464)
Amortization of: Prior service benefit (cost)	4	7
Foreign currency exchange rate changes	(107)	(673)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total	(465)	183
Other Postretirement Benefit Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	1,145	(7,501)
Amortization of: Net gains (losses)	200	68
Amortization of: Prior service benefit (cost)	159	158
Foreign currency exchange rate changes	3	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total	$ 1,507	$ (7,275)