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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2015
Fair Value Disclosures [Abstract] |
Fair Value, Measurement Inputs, Disclosure [Table Text Block] | The following table summarizes assets and liabilities measured on a recurring basis for each of the three hierarchy levels presented below.
Dollar amounts in millions | June 30, 2015 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Available for sale securities | $ | 4.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 4.6 |
Trading securities | 2.4 |  |  | 2.4 |  |  | — |  |  | — |
Contingent consideration | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Dollar amounts in millions | December 31, 2014 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Available for sale securities | $ | 4.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 4.6 |
Trading securities | 2.3 |  |  | 2.3 |  |  | — |  |  | — |
Contingent consideration | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table summarizes changes in assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the six months ended June 30, 2014. During the six months ended June 30, 2015, no adjustment was recognized associated with the fair value of these assets and liabilities.
Dollar amounts in millions | Available for sale securities | Contingent consideration
Balance at December 31, 2013 | 3.7 |  | 3.8 |
Adjustment to contingent consideration fair value |  | 0.1 |
Total unrealized gains included in other comprehensive income | 0.8 |  | — |
Foreign currency gain | — |  | (0.1 | )
Balance at June 30, 2014 | $ | 4.5 |  | $ | 3.8 |

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- Definition Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258 + Details
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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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