Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Percentage of revenue from service contracts and post-shipment obligations (less than)	3.00%
Percentage of sales to distributors	66.67%
Contract liability	$ 17.5	$ 10.2
Increase (decrease) in net contract liabilities	7.3
Revenue recognized	5.0
Unsatisfied performance obligation	$ 700.0
Minimum
Disaggregation of Revenue [Line Items]
Sales returns as percentage of gross sales, percent	1.00%
Unsatisfied performance obligation, period of recognition	3 years
Maximum
Disaggregation of Revenue [Line Items]
Sales returns as percentage of gross sales, percent	2.00%
Unsatisfied performance obligation, period of recognition	4 years

Increase (Decrease) In Contract With Customer, Liability

No definition available.

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- Definition

Percentage Of Revenue From Service Contracts And Post-Shipment Performance Obligations

+ References

No definition available.

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- Definition

Percentage Of Sales To Distributors

+ References

No definition available.

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- Definition

Sales Returns As Percentage Of Gross Sales, Percent

+ References

No definition available.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130549-203045

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
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-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
-Paragraph 13
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-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130556-203045

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- Definition

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130556-203045

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-Publisher FASB
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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