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Interest Income, Expense and Other Financing Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Interest Income, Expense and Other Financing Costs |  |  |  |
Interest income | $ 1.3 | $ 1.3 | $ 4.0 | $ 4.5
Interest expense and other financing costs | (9.2) | (10.1) | (25.5) | (22.3)
Interest expense and other financing costs, net | $ (7.9) | $ (8.8) | $ (21.5) | $ (17.8)

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- Definition Represents the amount of interest income and expense, net, which includes other financing costs. + References No definition available. + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount of interest income earned from interest bearing assets not separately disclosed. + References No definition available. + Details
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