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
-Topic 280
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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

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Revenues - Narrative (Details)	3 Months Ended		9 Months Ended
Revenues - Narrative (Details)	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020 customer country	Sep. 30, 2019
Concentration Risk [Line Items]
Number of customers \| customer			400
Number of countries in which customers are located (more than) \| country			50
Length of contract terms			We typically sell to customers under master service agreements, with primarily one-year terms, or by purchase orders.
10 Largest Customers \| Customer Concentration Risk \| Revenue from Contract with Customer
Concentration Risk [Line Items]
Concentration risk percentage	48.00%	51.00%	43.00%	47.00%
Shaw Industries Group Inc \| Customer Concentration Risk \| Revenue from Contract with Customer
Concentration Risk [Line Items]
Concentration risk percentage	14.00%	23.00%	13.00%	21.00%