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Retirement Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 3 Months Ended | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2014 Minimum [Member] | Sep. 30, 2014 Maximum [Member] | Sep. 30, 2014 Pension Plan, Defined Benefit [Member] | Sep. 30, 2014 Pension Plan, Defined Benefit [Member] | Sep. 30, 2013 Pension Plan, Defined Benefit [Member] | Sep. 30, 2012 Pension Plan, Defined Benefit [Member] | Sep. 30, 2013 Other Plans [Member] | Sep. 30, 2012 Other Plans [Member] | Apr. 02, 2014 Other Plans [Member] | Sep. 30, 2014 Equity Securities [Member] | Sep. 30, 2013 Fixed Income Funds [Member] | Sep. 30, 2015 Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Obligations Related to U.S. Plan | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension Contributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate |  |  |  |  |  | 4.49% | 4.49% | 5.16% | 4.21% |  | 4.22% | 5.00% |  |  |
Defined Benefit Plan, Target Plan Asset Allocations | 100.00% |  |  |  |  |  |  |  |  |  |  |  | 40.00% | 60.00% |
Curtailment gain (loss) |  |  |  |  |  |  |  | 0.2 |  | 7.4 | 2.4 |  |  |  |
Decrease in accumulated other comprehensive loss net of tax | (27.7) | 61.5 | (39.4) |  |  |  | 0.3 |  |  |  |  |  |  |  |
Discount rate |  |  |  |  |  | 5.16% |  | 4.21% | 5.66% |  | 5.69% |  |  |  |
Defined Benefit Plan Expected Return on Plan Assets Major Asset Classes Time Horizon |  |  |  | 10 | 15 |  |  |  |  |  |  |  |  |  |
Defined Contribution Plan, Cost Recognized | $ 5.6 | $ 5.1 | $ 4.7 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Assets Related to U.S. Plan | 97.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Percentage of total pension plan assets held by the Company's to U.S. pension plan. + References No definition available. + Details
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- Definition The interest rate used to adjust for the time value of money for 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. + 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)(7) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 + Details
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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + 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 (d)(i) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920 + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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- Definition Amount after tax and 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=36458714&loc=SL7669646-108580 + Details
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