XML 63 R48.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Non-controlling Interests (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Noncontrolling Interest [Abstract] |
Schedule of changes in non-controlling interests | Changes in non-controlling interests (in thousands) for year ended December 31, 2020, was as follows:
Non-controlling interests balance as of beginning of period | $ | 6,689 |
Issuance of non-controlling interest | 25,749 |
Disposal of assets | (6,689) |
Redemption of Sponsor’s equity | (25,749) |
Non-controlling interests balance as of end of period | $ | — |

X
- Definition Schedule of Changes in Noncontrolling Interest [Table Text Block] + References No definition available. + Details
Name: | evh_ScheduleofChangesinNoncontrollingInterestTableTextBlock
Namespace Prefix: | evh_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NoncontrollingInterestAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration