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DERIVATIVES - Schedule of cumulative fair value hedge basis adjustments (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Carrying amount of the hedged items, Crypto assets held | $ 209,972 | $ 421,685
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items, active hedging relationships, Crypto assets held | (1,025) | (240,771)
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items, discontinued hedging relationships, Crypto assets held | 448 | 0
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items, total, Crypto assets held | $ (577) | $ (240,771)

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- Definition Hedged Asset, Active And Discontinued Fair Value Hedge, Cumulative Increase (Decrease) + References No definition available. + Details
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Namespace Prefix: | coin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk, remaining after discontinued hedge. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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- Definition Amount of asset hedged in fair value hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
Name: | us-gaap_HedgedAssetFairValueHedgeCumulativeIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant