Revenue From Contracts With Customers - Narrative (Details)	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Time period of contractual future performance obligations for which value not disclosed (or less)	1 year
Two customers \| Accounts receivable and unbilled receivables \| Customer concentration risk
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Concentration risk percentage	39.00%	40.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration