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Commitments and Contingencies - Receivable Purchase Agreement (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Mar. 31, 2018
Commitments and Contingencies |  |
Trade receivables from customers without recourse to be sold, maximum amount | $ 23.0 | $ 23.0
Receivable Purchase Agreement, term | 1 year |
Trade receivables, sold |  | $ 0.0

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- References No definition available. + Details
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- Definition Threshold period past due for trade accounts receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The face amount of accounts receivable that will be sold to other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
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- Definition Amount of accounts receivable that has been sold to other entities. + References No definition available. + Details
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