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Fair-Value Measurements (Narrative) (Details) - Interest Rate Swap [Member] - Long-term Debt, Type [Domain] - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Derivative [Line Items] |  |
Interest expense | $ 1.0 | $ 1.0
Hedge effectiveness, percent | 100.00% |

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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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