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Description of Organization and Business Operations, Liquidity and Capital Resources (Q2) (Details) - USD ($)
4 Months Ended 6 Months Ended
Mar. 02, 2021
Jan. 04, 2021
Dec. 31, 2020
Jun. 30, 2021
Liquidity and Capital Resources [Abstract]        
Cash at bank     $ 0 $ 757,247
Working capital       1,100,000
Loan proceeds       127,075
Sponsor [Member]        
Liquidity and Capital Resources [Abstract]        
Offering costs paid by sponsor in exchange for issuance of founder shares       25,000
Sponsor [Member] | Promissory Note [Member]        
Liquidity and Capital Resources [Abstract]        
Loan proceeds $ 161,000 $ 11,000 $ 11,000 161,000
Working capital loan outstanding amount       $ 0