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Segment and Geographic Information - Schedule of Revenue by Major Customers (Details) - Customer Concentration Risk - Revenue	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
UnitedHealthcare
Revenue, Major Customer [Line Items]
Major customer revenue, percentage	21.00%	17.00%	21.00%	21.00%
Aetna
Revenue, Major Customer [Line Items]
Major customer revenue, percentage	15.00%	12.00%	20.00%	14.00%
Humana
Revenue, Major Customer [Line Items]
Major customer revenue, percentage	20.00%	26.00%	18.00%	21.00%
Centene
Revenue, Major Customer [Line Items]
Major customer revenue, percentage	11.00%	8.00%	12.00%	10.00%

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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X

- 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

No definition available.

+ Details

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