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Retirement And Other Benefit Plans (Tables) | 12 Months Ended
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Sep. 30, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule Of Reconciliation Of Benefit Obligation |
(Dollars in millions) |  | 2011 |  | 2010 |
Reconciliation of benefit obligation |  |  |  |  |
Net benefit obligation at beginning of year | $ | 79.4 |  | 74.9 |
Service cost |  | 0.1 |  | 0.2 |
Interest cost |  | 3.9 |  | 4.0 |
Actuarial loss |  | 4.8 |  | 4.2 |
Settlements |  | (1.8 | ) | (0.8 | )
Gross benefits paid |  | (3.2 | ) | (3.1 | )
Net benefit obligation at end of year | $ | 83.2 |  | 79.4 |
Schedule Of Reconciliation Of Fair Value Of Plan Assets |
(Dollars in millions) |  | 2011 |  | 2010 |
Reconciliation of fair value of plan assets |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 49.2 |  | 46.5 |
Actual return on plan assets |  | 0.8 |  | 4.2 |
Employer contributions |  | 5.5 |  | 2.4 |
Gross benefits paid |  | (3.2 | ) | (3.1 | )
Settlements |  | (1.8 | ) | (0.8 | )
Fair value of plan assets at end of year | $ | 50.5 |  | 49.2 |
Schedule Of Funded Status |
(Dollars in millions) |  | 2011 |  | 2010 |
Funded Status |  |  |  |  |
Funded status at end of year | $ | (32.7 | ) | (30.2 | )
Unrecognized prior service cost |  | — |  | — |
Unrecognized net actuarial (gain) loss |  | — |  | — |
Accrued benefit cost |  | (32.7 | ) | (30.2 | )
Amounts recognized in the Balance Sheet |  |  |  |  |
consist of: |  |  |  |  |
Noncurrent asset |  | — |  | — |
Current liability |  | (0.2 | ) | (0.3 | )
Noncurrent liability |  | (32.5 | ) | (29.9 | )
Accumulated other comprehensive (income)/loss |  |  |
(before tax effect) |  | 41.3 |  | 34.1 |
Amounts recognized in Accumulated Other |  |  |  |  |
Comprehensive (Income)/Loss consist of: |  |  |  |  |
Net actuarial loss |  | 41.2 |  | 34.0 |
Prior service cost |  | 0.1 |  | 0.1 |
Schedule Of Components Of Net Periodic Benefit Cost For Plans |
(Dollars in millions) |  | 2011 |  | 2010 |  | 2009 |
Service cost | $ | 0.1 |  | 0.2 |  | 0.4 |
Interest cost |  | 3.9 |  | 4.0 |  | 4.2 |
Expected return on plan assets |  | (4.2 | ) | (4.1 | ) | (4.3 | )
Net actuarial loss |  | 1.1 |  | 0.9 |  | 0.2 |
Settlement gain |  | — |  | (0.5 | ) | — |
Net periodic benefit cost |  | 0.9 |  | 0.5 |  | 0.5 |
Defined contribution plans |  | 3.7 |  | 4.3 |  | 4.4 |
Total | $ | 4.6 |  | 4.8 |  | 4.9 |
Schedule Of Asset Allocation For Pension Plans Acceptable Range And Target Allocation By Asset Category |
Target AcceptablePercentage of Plan Allocation RangeAssets at Year-end
Asset Category | 2012 |  |  |  | 2011 |  | 2010 |
Equity securities | 62 | % | 50-70 | % | 56 | % | 63 | %
Fixed income | 38 | % | 30-50 | % | 43 | % | 35 | %
Cash/cash equivalents | 0 | % | 0-5 | % | 1 | % | 2 | %
Schedule Of Fair Value Of Financial Measurements |
(Dollars in millions) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Investments at Fair Value: |  |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 0.5 | $ | — | $ | — | $ | 0.5
Common and Preferred Stock Funds: |  |  |  |  |  |  |  |
Domestic large capitalization |  | 7.2 |  | 0.4 |  | — |  | 7.6
Domestic small/mid capitalization |  | 7.0 |  | 0.5 |  | — |  | 7.5
International funds |  | 7.2 |  | 0.6 |  | — |  | 7.8
Fixed Income Funds |  | 0.8 |  | 24.0 |  | — |  | 24.8
Real Estate Investments |  | 2.1 |  | 0.2 |  | — |  | 2.3
Total Investments at Fair Value | $ | 24.8 |  | 25.7 |  | — |  | 50.5
Schedule Of Expected Benefit Payments |
|  | Pension | Other
(Dollars in millions) |  | Benefits | Benefits
Expected Employer Contributions — 2012 | $ | 7.3 | 0.1
Expected Benefit Payments |  |  |
2012 |  | 3.8 | 0.1
2013 |  | 4.3 | 0.1
2014 |  | 4.1 | 0.1
2015 |  | 4.3 | —
2016 |  | 4.7 | —
2017-2021 | $ | 24.9 | 0.3
Net Periodic Benefit Cost [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule Of Weighted-Average Assumptions Used To Determine The Net Periodic Benefit Cost For Pension Plans |
| 2011 |  | 2010 |  | 2009 |
Discount rate | 5.00 | % | 5.50 | % | 7.25 | %
Rate of increase in |  |  |  |  |  |
compensation levels | N/A |  | N/A |  | N/A |
Expected long-term rate of |  |  |  |  |  |
return on assets | 8.00 | % | 8.00 | % | 8.25 | %
Net Periodic Benefit Obligations [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule Of Weighted-Average Assumptions Used To Determine The Net Periodic Benefit Cost For Pension Plans |
| 2011 |  | 2010 |
Discount rate | 4.5 | % | 5.0 | %
Rate of increase in |  |  |  |
compensation levels | N/A |  | N/A |

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (d)(5) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Subparagraph (c) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (b) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 715 -SubTopic 20 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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