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Summary of Significant Accounting Policies (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($) Segment | Mar. 31, 2017 USD ($)
Accounting Policies [Abstract] |  |
Number of operating segments | Segment | 2 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Selling, engineering, general and administrative expenses | $ 41.8 | $ 31.4
Other expense (income), net | $ 0.1 | (0.2)
ASU 2017-07 | Selling, engineering, general and administrative expenses |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Impact of Adoption |  | (0.1)
ASU 2017-07 | Other income |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Impact of Adoption |  | 0.1
As Reported |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Selling, engineering, general and administrative expenses |  | 31.5
Other expense (income), net |  | $ (0.3)

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311 + Details
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