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FAIR VALUE MEASUREMENTS - Additional information (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 15, 2020 | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2021
Forward price |  |  | $ 10.00 | $ 10.00
Change in fair value of derivative liabilities |  | $ 1,387,420 | $ 10,659,080 | $ (19,742,760)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances |  |  | 33,919,120 |
Aggregate purchase price |  |  | 11,080,000 |
Cash received in private placement in excess of initial fair value |  |  | (664,800) |
Fair value assets level 1 to level 2 transfers |  |  | 0 |
Fair value assets level 2 to level 1 transfers |  |  | 0 |
Fair value assets transferred into (out of) level 3 |  |  | 0 |
Private Placement. |  |  |  |
Cash received in private placement in excess of initial fair value |  |  | 664,800 |
Private Placement Warrants |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances |  |  | 10,415,200 |
Aggregate purchase price |  |  | 11,080,000 |
Private Placement Warrants | Private Placement. |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances |  |  | 10,415,200 |
Aggregate purchase price | $ 11,080,000 |  | $ 11,080,000 |

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- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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