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Amount of working capital (deficit) i.e., calculated based on current assets less current liabilities.

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No definition available.

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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 more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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The amount for notes payable (written promise to pay), due to related parties.

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DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, Liquidity and Going Concern (Q1) (Details) - USD ($)	3 Months Ended		7 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Feb. 18, 2021	Jun. 10, 2019
Liquidity and Going Concern [Abstract]
Cash	$ 100,608		$ 894,589	$ 312,707
Securities held in Trust Account	254,202,898		251,924,993	254,187,706
Working capital deficit	(3,547,185)			(2,809,430)
Interest income	29,681	$ 932,037	$ 1,812,577	2,257,985
Sponsor [Member] \| Promissory Note [Member]
Liquidity and Going Concern [Abstract]
Unsecured convertible promissory note						$ 237,470
Sponsor [Member] \| Promissory Note [Member] \| Maximum [Member]
Liquidity and Going Concern [Abstract]
Unsecured convertible promissory note					$ 750,000
Trust Account [Member]
Liquidity and Going Concern [Abstract]
Interest income	$ 4,217,387			$ 4,188,000