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Defined Benefit Plans (Tables) | 6 Months Ended
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Mar. 31, 2013
Compensation and Retirement Disclosure [Abstract] |
Components of Consolidated Net Periodic Benefit and Deferred Compensation Benefit Costs and Contributions Made | The components of consolidated net periodic benefit and deferred compensation benefit costs and contributions made are as follows:
| Three months ended |  | Six months ended
| March 31, 2013 |  | April 1, 2012 |  | March 31, 2013 |  | April 1, 2012
Service cost | $ | 0.9 |  |  | $ | 0.7 |  |  | $ | 1.7 |  |  | $ | 1.3 |
Interest cost | 2.7 |  |  | 2.7 |  |  | 5.3 |  |  | 4.9 |
Expected return on assets | (2.4 | ) |  | (2.3 | ) |  | (4.9 | ) |  | (3.8 | )
Recognized net actuarial loss | 0.6 |  |  | 0.3 |  |  | 1.1 |  |  | 0.3 |
Employee contributions | (0.1 | ) |  | (0.1 | ) |  | (0.1 | ) |  | (0.1 | )
Net periodic benefit expense | $ | 1.7 |  |  | $ | 1.3 |  |  | $ | 3.1 |  |  | $ | 2.6 |
Contributions made during period | $ | 1.2 |  |  | $ | 1.7 |  |  | $ | 1.9 |  |  | $ | 2.6 |

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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