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Restructuring Expenses (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve at Beginning of Year | $ 4.9 | $ 1.7 | $ 0.7
Restructuring Reserve, Expenses Incurred | 1.8 | 7.2 | 3.6
Restructuring Reserve, Paid | 4.2 | 4.0 | 2.6
Restructuring Reserve at End of Year | 2.5 | 4.9 | 1.7
Employee Termination Costs [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve at Beginning of Year | 2.6 | 0.7 | 0.6
Restructuring Reserve, Expenses Incurred | 1.8 | 5.1 | 2.1
Restructuring Reserve, Paid | 2.8 | 3.2 | 2.0
Restructuring Reserve at End of Year | 1.6 | 2.6 | 0.7
Early Lease Termination Costs [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve at Beginning of Year | 2.3 | 1.0 | 0.1
Restructuring Reserve, Expenses Incurred | 0 | 2.0 | 1.4
Restructuring Reserve, Paid | 1.4 | 0.7 | 0.5
Restructuring Reserve at End of Year | 0.9 | 2.3 | 1.0
Other Associated Costs [Member] |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring Reserve at Beginning of Year | 0 | 0 | 0
Restructuring Reserve, Expenses Incurred | 0 | 0.1 | 0.1
Restructuring Reserve, Paid | 0 | 0.1 | 0.1
Restructuring Reserve at End of Year | $ 0 | $ 0 | $ 0

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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