Commitments and Contingencies - Receivable Purchase Agreement (Details) - USD ($) $ in Millions	1 Months Ended
Dec. 31, 2017	Dec. 31, 2018
Commitments and Contingencies
Trade receivables from customers without recourse to be sold, maximum amount	$ 23.0
Receivable Purchase Agreement, term	1 year
Trade receivables, sold	$ 15.0	$ 0.0
Trade receivable, available for additional sales	$ 8.0

No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

Name:	us-gaap_TradeReceivablesHeldForSaleAmount
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- Definition

Amount of accounts receivable that is available for sale to other entities.

+ References

No definition available.

+ 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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