XML 88 R78.htm IDEA: XBRL DOCUMENT v3.22.2.2

Commitments and Contingencies - Concentration Risk (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Percentage of cash and cash equivalents held with FDIC participating bank		98.20%		98.20%
Cash and cash equivalents (including restricted cash)	[1]	$ 194,818	$ 281,755	$ 194,818	$ 281,755	$ 354,942	$ 361,581
Percentage of cash held in international banks (less than)		1.00%		1.00%
Cook County Health and Hospitals System | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				30.10%
Cook County Health and Hospitals System | Customer Concentration Risk | Revenues
Concentration Risk [Line Items]
Concentration risk (in percent)		21.20%	29.00%	23.00%	29.00%
Florida Blue Medicare, Inc. | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)						46.40%
Florida Blue Medicare, Inc. | Customer Concentration Risk | Revenues
Concentration Risk [Line Items]
Concentration risk (in percent)		13.70%	13.80%	12.50%	14.20%
Molina Healthcare | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)						10.40%
Bright Health Management, Inc. | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				12.20%
[1] As a result of the closing of the sale of True Health during the first quarter of 2021, the consolidated statement of operations and related financial information reflect the Company’s operations and assets and liabilities of True Health as discontinued operations. Cash flows and comprehensive income have not been adjusted and are included in the consolidated statements of cash flows and consolidated statements of comprehensive income (loss) for the nine months ended September 30, 2021. See Note 5.

X

- Definition

Cash, FDIC Insured Amount, Percentage

+ References

No definition available.

+ Details

Name:	evh_CashFDICInsuredAmountPercentage
Namespace Prefix:	evh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Cash, Held In International Banks, Percentage

+ References

No definition available.

+ Details

Name:	evh_CashHeldInInternationalBanksPercentage
Namespace Prefix:	evh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3521-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586

+ Details

Name:	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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
-Paragraph 42
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ Details

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

X

- Details

Name:	srt_MajorCustomersAxis=evh_CookCountyHealthAndHospitalsSystemMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_TradeAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_RevenueFromContractWithCustomerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=evh_FloridaBlueMedicareIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=evh_MolinaHealthcareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=evh_BrightHealthManagementIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: