XML 64 R54.htm IDEA: XBRL DOCUMENT v3.23.3

Basis of Presentation, Summary of Significant Accounting Policies and Change in Accounting Principles - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) payment	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) option_to_renew_lease payment	Sep. 30, 2022 USD ($)	Dec. 31, 2022
Accounting Policies [Abstract]
Accounts receivable netted against claims payable	59.00%		59.00%		47.00%
Accounts receivable, net eligible for net basis settlement	18.00%		18.00%
Number of leases option | option_to_renew_lease			1
Right-of-use assets impairment	$ 0	$ 0	$ 24,065	$ 0
Loss on termination of lease			$ 6,500
Number of lease termination payment | payment	2		2
Termination payment paid	$ 3,250		$ 3,250

X

- Definition

Lessee, Operating Lease, Termination Penalty, Number Of Payments

+ References

No definition available.

+ Details

Name:	evh_LesseeOperatingLeaseTerminationPenaltyNumberOfPayments
Namespace Prefix:	evh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Lessee, Operating Lease, Termination Penalty, Payment Amount

+ References

No definition available.

+ Details

Name:	evh_LesseeOperatingLeaseTerminationPenaltyPaymentAmount
Namespace Prefix:	evh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number Of Options To Renew Leases

+ References

No definition available.

+ Details

Name:	evh_NumberOfOptionsToRenewLeases
Namespace Prefix:	evh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Right of Offset, Percentage of Accounts Receivable, Net Eligible for Net Basis Settlement

+ References

No definition available.

+ Details

Name:	evh_RightOfOffsetPercentageOfAccountsReceivableNetEligibleForNetBasisSettlement
Namespace Prefix:	evh_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Right of Offset, Percentage of Accounts Receivable Netted Against Claims Payable

+ References

No definition available.

+ Details

Name:	evh_RightOfOffsetPercentageOfAccountsReceivableNettedAgainstClaimsPayable
Namespace Prefix:	evh_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479092/842-20-40-1

+ Details

Name:	us-gaap_GainLossOnTerminationOfLease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 25
-Paragraph 6
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479365/842-20-25-6

+ Details

Name:	us-gaap_OperatingLeaseImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration