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Shareholder's Equity (Deficit) (FY) (Details)
6 Months Ended
Jan. 04, 2021
$ / shares
shares
Jun. 30, 2021
$ / shares
shares
Dec. 31, 2020
$ / shares
shares
Stockholders' Equity [Abstract]      
Stock conversion percentage threshold 20.00% 20.00%  
Voting rights per share one vote one vote  
Stock conversion basis at time of business combination percentage 20.00% 20.00%  
Stock conversion basis at time of business combination 1 1  
Preference shares, shares authorized (in shares) 1,000,000 1,000,000 1,000,000
Preference shares, shares issued (in shares) 0 0 0
Preference shares, shares outstanding (in shares) 0 0 0
Class A Ordinary Shares [Member]      
Stockholders' Equity [Abstract]      
Ordinary shares, shares authorized (in shares) 479,000,000 479,000,000 479,000,000
Ordinary shares, par value (in dollars per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001
Ordinary shares, shares outstanding (in shares) 0 1,409,612 0
Ordinary shares, shares issued (in shares) 0 1,409,612 0
Class B Ordinary Shares [Member]      
Stockholders' Equity [Abstract]      
Ordinary shares, shares authorized (in shares) 20,000,000 20,000,000 20,000,000
Ordinary shares, par value (in dollars per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001
Ordinary shares, shares outstanding (in shares) 3,737,500 3,737,500 0
Ordinary shares, shares issued (in shares) 3,737,500 3,737,500 0
Sponsor [Member] | Class B Ordinary Shares [Member]      
Stockholders' Equity [Abstract]      
Ordinary shares, par value (in dollars per share) | $ / shares $ 0.0001    
Ordinary shares, shares issued (in shares) 3,737,500 3,737,500  
Sponsor [Member] | Class B Ordinary Shares [Member] | Maximum [Member]      
Stockholders' Equity [Abstract]      
Shares subject to forfeiture (in shares) 487,500