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Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Millions | Sep. 30, 2019 | Jan. 01, 2019 | Dec. 31, 2018
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Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | $ 1,048.2 |  | $ 1,045.0
Intangible assets, Accumulated Amortization | 457.7 |  | 416.7
Intangible assets, Net Carrying Amount | 590.5 |  | 628.3
Intangible assets not subject to amortization: |  |  |
Trade name | 103.6 |  | 96.2
FAA air agency certificates | 8.7 |  | 8.7
Indefinite Lived Intangible Assets Net | 112.3 |  | 104.9
Total intangible assets, Gross Carrying Amount | 1,160.5 |  | 1,149.9
Total intangible assets, Net Carrying Amount | 702.8 | $ 733.9 | 733.2
Customer Relationships [Member] |  |  |
Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | 481.7 |  | 481.5
Intangible assets, Accumulated Amortization | 120.6 |  | 99.8
Intangible assets, Net Carrying Amount | 361.1 |  | 381.7
Technology-Based Intangible Assets [Member] |  |  |
Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | 244.9 |  | 245.0
Intangible assets, Accumulated Amortization | 50.7 |  | 40.4
Intangible assets, Net Carrying Amount | 194.2 |  | 204.6
Trademarks [Member] |  |  |
Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | 11.9 |  | 11.3
Intangible assets, Accumulated Amortization | 5.6 |  | 4.8
Intangible assets, Net Carrying Amount | 6.3 |  | 6.5
Computer Software, Intangible Asset [Member] |  |  |
Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | 268.6 |  | 266.4
Intangible assets, Accumulated Amortization | 243.6 |  | 236.5
Intangible assets, Net Carrying Amount | 25.0 |  | 29.9
Unclassified Indefinite-lived Intangible Assets [Member] |  |  |
Intangible assets subject to amortization: |  |  |
Intangible assets, Gross Carrying Amount | 41.1 |  | 40.8
Intangible assets, Accumulated Amortization | 37.2 |  | 35.2
Intangible assets, Net Carrying Amount | $ 3.9 |  | $ 5.6

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire Federal Aviation Administration (FAA) air agency certificates allowing the company to operate as a repair station for limited accessories, limited airframes and limited power plants. These certificates have an indefinite period of benefit. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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