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Financing Arrangements (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  | 0 Months Ended |  |  | 12 Months Ended | 0 Months Ended |  |  | 1 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended |  | 0 Months Ended | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Apr. 27, 2006 5.85% notes due April 2016 | Dec. 31, 2012 5.85% notes due April 2016 | Dec. 31, 2011 5.85% notes due April 2016 | Dec. 31, 2012 5.85% notes due April 2016 Minimum | May 15, 2003 5.47% notes due May 2013 | Dec. 31, 2012 5.47% notes due May 2013 | Dec. 31, 2011 5.47% notes due May 2013 | Jun. 30, 2010 5.05% notes due June 2020 | Dec. 31, 2012 5.05% notes due June 2020 | Dec. 31, 2011 5.05% notes due June 2020 | Dec. 31, 2012 5.05% notes due June 2020 Minimum | Dec. 31, 2011 Eurocurrency rate loans | Dec. 31, 2012 Other consists primarily of European borrowings (at interest rates ranging from 4.1% to 6.0%) | Dec. 31, 2011 Other consists primarily of European borrowings (at interest rates ranging from 4.1% to 6.0%) | May 15, 2003 Senior unsecured notes | May 15, 2003 4.87% senior notes due 2010 | Dec. 31, 2010 4.87% senior notes due 2010
Financing Arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 5.85% |  |  | 5.47% | 5.47% |  |  | 5.05% |  |  |  |  |  |  | 4.87% |
Minimum interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Maximum interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |
Total debt | $ 384.6 | $ 399.4 |  | $ 225.0 | $ 225.0 |  |  | $ 75.0 | $ 75.0 |  | $ 75.0 | $ 75.0 |  | $ 13.0 | $ 9.6 | $ 11.4 |  |  |
Less Current Maturities | 77.1 | 2.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, net of current portion | 307.5 | 397.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of notes issued |  |  | 225.0 |  |  |  | 75.0 |  |  | 75.0 |  |  |  |  |  |  | 125.0 | 50.0 |
Term of letters of credit from the date of issuance | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Optional amount that the Company may prepay |  |  |  |  |  | 1.0 |  |  |  |  |  |  | 1.0 |  |  |  |  |  |
Debt repaid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.0
Principal payments during each of the next five years and thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2013 | 77.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 | 2.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 | 2.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 | 228.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | 75.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding | $ 34.8 | $ 34.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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