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Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Oct. 31, 2021 reportingUnit	Mar. 31, 2022 USD ($) reportingUnit	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units for goodwill testing | reportingUnit	3	3
Goodwill [Roll Forward]
Balance as of beginning of period		$ 426,297	$ 349,029
Foreign currency translation		(23)	(7)
Balance as of end of period		426,274	349,022
Cumulative inception to date impairment				$ 575,500	$ 575,500
Evolent Health Services
Goodwill [Roll Forward]
Balance as of beginning of period		214,334	214,354
Foreign currency translation		(23)	(7)
Balance as of end of period		214,311	214,347
Clinical Solutions
Goodwill [Roll Forward]
Balance as of beginning of period		211,963	134,675
Foreign currency translation		0	0
Balance as of end of period		$ 211,963	$ 134,675

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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