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Reserves for Claims and Performance-Based Arrangements (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract] |  |
Beginning balance | $ 178,827 | $ 54,510
Incurred costs related to current year | 457,841 | 420,597
Incurred costs related to prior year | 7,109 | 2,878
Paid costs related to current year | 358,448 | 464,571
Paid costs related to prior year | 125,619 | 9,598
Change during the year | (19,117) | (50,694)
Impact of consolidation on reserves for claims and performance-based arrangements | 0 | 164,297
Other adjustments | 11,584 | 10,714
Ending balance | 171,294 | 178,827
Discontinued Operations, Disposed of by Sale | True Health |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract] |  |
Beginning balance | 9,900 |
Ending balance |  | 9,900
Evolent Health Services |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract] |  |
Beginning balance | 56,296 | 4,265
Incurred costs related to current year | 8,669 | (7,542)
Incurred costs related to prior year | 7,036 | 2,853
Paid costs related to current year | 20,801 | 106,093
Paid costs related to prior year | 25,544 | 2,123
Change during the year | (30,640) | (112,905)
Impact of consolidation on reserves for claims and performance-based arrangements | 0 | 164,297
Other adjustments | (38) | 639
Ending balance | 25,618 | 56,296
Clinical Solutions |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract] |  |
Beginning balance | 122,531 | 50,245
Incurred costs related to current year | 449,172 | 428,139
Incurred costs related to prior year | 73 | 25
Paid costs related to current year | 337,647 | 358,478
Paid costs related to prior year | 100,075 | 7,475
Change during the year | 11,523 | 62,211
Impact of consolidation on reserves for claims and performance-based arrangements | 0 | 0
Other adjustments | 11,622 | 10,075
Ending balance | $ 145,676 | $ 122,531

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- Definition Current Year Claims And Claims Adjustment Expense, Including Cost Of Goods And Services Sold, Excluding Depreciation And Amortization + References No definition available. + Details
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- Definition The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (cc) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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- Definition Amount of increase (decrease) in the cost of settling unpaid claims after deduction of reinsurance recoveries related to the acquisition of a business. Includes, but is not limited to, claims which have been incurred but not reported. + References No definition available. + Details
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- Definition Amount, after effects of reinsurance, of payments to settle claims incurred in the current period and related claims settlement costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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- Definition Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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- Definition Sum of adjustments to the estimated reserve for unpaid claims and claims adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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- Definition Amount, after effects of reinsurance, of increase (decrease) in the liability for unpaid claims and claims adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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