Retirement Benefits (Schedule of Net Perioodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Pension Plans, Defined Benefit [Member]
Service cost	$ 706	$ 1,131
Interest cost	2,043	2,205
Expected return on plan assets	(3,448)	(3,191)
Amortization of: Net actuarial (gain) loss	148	244
Amortization of: Prior service (benefit) cost	96	18
Net periodic retirement pension (beneift) cost	(455)	407
Contributions paid	1,101	1,671
United States Pension Plans of US Entity, Defined Benefit [Member]
Service cost	504	872
Interest cost	1,497	1,610
Expected return on plan assets	(2,670)	(2,434)
Amortization of: Net actuarial (gain) loss	99	83
Amortization of: Prior service (benefit) cost	96	19
Net periodic retirement pension (beneift) cost	(474)	150
Contributions paid	0	100
Foreign Pension Plans, Defined Benefit [Member]
Service cost	202	259
Interest cost	546	595
Expected return on plan assets	(778)	(757)
Amortization of: Net actuarial (gain) loss	49	161
Amortization of: Prior service (benefit) cost	0	(1)
Net periodic retirement pension (beneift) cost	19	257
Contributions paid	1,101	1,571
Other Postretirement Benefit Plans, Defined Benefit [Member]
Service cost	7	12
Interest cost	308	358
Amortization of: Net actuarial (gain) loss	(18)	(50)
Amortization of: Prior service (benefit) cost	(40)	(40)
Net periodic retirement pension (beneift) cost	257	280
Contributions paid	$ 326	$ 506

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Gain or Loss

-URI http://asc.fasb.org/extlink&oid=6514294

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

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

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-Name Accounting Standards Codification

-Topic 715

-SubTopic 60

-Glossary Gain or Loss

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The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512136

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

-Publisher FASB

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-Glossary Expected Return on Plan Assets

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ 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 (h)(1)

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

-Publisher FASB

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-Glossary Service Cost (Component of Net Periodic Pension Cost)

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The amount of cash or cash equivalents contributed during the reporting period by the entity to fund non-pension postretirement benefits.

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-Name Accounting Standards Codification

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The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

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