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, 2013	Sep. 30, 2012	Sep. 30, 2011
Net (gain) loss arising during the period	$ (26,756)	$ 17,960	$ 3,088
Loss due to settlement arising during the period	(36)	(56)	0
Amortization of: Net gains (losses)	(1,770)	(1,280)	(1,339)
Amortization of: Prior service benefit (cost)	90	484	805
Foreign currency exchange rate changes	(673)	171	376
Pension Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	(19,255)	12,548
Loss due to settlement arising during the period	(36)	(56)
Amortization of: Net gains (losses)	(1,838)	(1,189)
Amortization of: Prior service benefit (cost)	(68)	(66)
Foreign currency exchange rate changes	(673)	167
Total recorded in accumulated other comprehensive loss (income)	(21,870)	11,404
United States Pension Plans of US Entity, Defined Benefit [Member]
Net (gain) loss arising during the period	(20,604)	13,574
Loss due to settlement arising during the period	0	0
Amortization of: Net gains (losses)	(1,374)	(524)
Amortization of: Prior service benefit (cost)	(75)	(75)
Foreign currency exchange rate changes	0	0
Total recorded in accumulated other comprehensive loss (income)	(22,053)	12,975
Foreign Pension Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	1,349	(1,026)
Loss due to settlement arising during the period	(36)	(56)
Amortization of: Net gains (losses)	(464)	(665)
Amortization of: Prior service benefit (cost)	7	9
Foreign currency exchange rate changes	(673)	167
Total recorded in accumulated other comprehensive loss (income)	183	(1,571)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Net (gain) loss arising during the period	(7,501)	5,412
Amortization of: Net gains (losses)	68	(91)
Amortization of: Prior service benefit (cost)	158	550
Foreign currency exchange rate changes	0	4
Total recorded in accumulated other comprehensive loss (income)	$ (7,275)	$ 5,875

Amount before tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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- Definition

Amount before tax of gain (loss) adjustment to other comprehensive income (loss) resulting from settlement or curtailment of defined benefit pension and other postretirement defined benefit plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(7)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(10)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Plan Curtailment

-URI http://asc.fasb.org/extlink&oid=6520938

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Settlement of a Pension or Postretirement Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6531942

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- Definition

Amount before tax, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (i-k)

-URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580

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- Definition

Amount before tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

+ References

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- Definition

Amount before tax of reclassification adjustment from accumulated other comprehensive income (loss) for actuarial gain (loss) related to pension and other postretirement benefit plans.

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- Definition

The amount of increase or decrease in amounts recognized in other comprehensive income (but not yet recognized in net periodic benefit cost) for defined benefit plans attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

+ References

No definition available.

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