Fair Value Measurements - Schedule of fair value measured on recurring basis (Detail) - USD ($)	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets:
Investments - U.S. Treasury Securities Money Market Fund	$ 351,889,481	$ 175,325,383	$ 94,650
Liabilities:
Warrant Liability - Public Warrants	45,850,000	74,900,000	20,125,000
Warrant Liability - Private Placement Warrants	$ 1,397,250	$ 2,519,100	$ 822,150

The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate within one year of the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(b))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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