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Revenue - Narrative (Details)	12 Months Ended
	Dec. 31, 2018
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract payment terms	30 days
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract payment terms	60 days
Remaining performance obligation expected timing of satisfaction	1 year

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- Definition

Contract With Customer, Contract Payment Terms

+ References

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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

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

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