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DERIVATIVES - Schedule of cumulative fair value hedge basis adjustments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
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)

X

- 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

X

- References

No definition available.

+ Details

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

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

X

- 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

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Balance Type:	debit
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