Fair Value Measurements - Summary of fair value of the warrant liabilities (Detail) - USD ($)	8 Months Ended	12 Months Ended
Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of Public Warrants and Private Placement Warrants		$ 959,526	$ 310,330,174
Warrant liabilities (Level 3) [Member] \| Warrant [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 0		3,312,941
Issuance of Public Warrants and Private Placement Warrants	8,635,764
Change in fair value of Public Warrants and Private Placement Warrants	959,526		155,156,061
Transfer of Public Warrants from Level 3 to Level 1 measurement	(6,282,349)
Ending balance	$ 3,312,941	$ 3,312,941	$ 158,469,002

Amount of expense (income) related to adjustment to fair value of warrant liability.

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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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.

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Fair value 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.

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