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v3.19.3.a.u2

Goodwill and Identifiable Assets Goodwill (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 17, 2019 | Jan. 25, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Line Items] |  |  |  |  |
Amortization of intangible assets |  |  | $ 51.1 | $ 58.5 | $ 33.4
Goodwill [Roll Forward] |  |  |  |  |
Gross goodwill, period start |  |  | 1,421.1 | 894.1 |
Goodwill, Acquired During Period |  |  |  | 528.2 |
Translation adjustment |  |  | (0.3) | (1.2) |
Gross goodwill, period end |  |  | 1,486.9 | 1,421.1 | 894.1
Apex |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Amortization of intangible assets |  |  | 20.3 | 26.2 | 29.4
Goodwill [Roll Forward] |  |  |  |  |
Gross goodwill, period start |  |  | (662.1) | 662.1 |
Translation adjustment |  |  | 0.0 |  |
Gross goodwill, period end |  |  | (703.5) | (662.1) | 662.1
Oxford |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Amortization of intangible assets |  |  | 3.7 | 4.2 | 4.0
Goodwill [Roll Forward] |  |  |  |  |
Gross goodwill, period start |  |  | (230.8) | 232.0 |
Translation adjustment |  |  | (0.3) | (1.2) |
Gross goodwill, period end |  |  | (230.5) | (230.8) | 232.0
ECS |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Amortization of intangible assets |  |  | 27.1 | 28.1 | 0.0
Goodwill [Roll Forward] |  |  |  |  |
Gross goodwill, period start |  |  | 528.2 | 0.0 |
Gross goodwill, period end |  |  | 552.9 | 528.2 | $ 0.0
DHA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, Acquired During Period |  | $ 24.7 | 24.7 |  |
DHA | ECS |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, Acquired During Period |  |  | 24.7 |  |
Intersys |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, Acquired During Period | $ 41.4 |  | 41.4 |  |
Intersys | Apex |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, Acquired During Period |  |  | $ 41.4 |  |
ECS |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, Acquired During Period |  |  |  | $ 528.2 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 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)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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