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Private Placement Warrants (Q3) | 9 Months Ended | 12 Months Ended
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Sep. 30, 2021 | Dec. 31, 2020
Private Placement Disclosure [Abstract] |  |
Private Placement Warrants | Note 5 — Private Placement Warrants Simultaneously with the closing of the Initial Public Offering, the Sponsor purchased an aggregate of 5,933,333 Private Placement Warrants at a price of $1.50 per Private Placement Warrant, for an aggregate price of $8,900,000. Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share, subject to adjustment (see Note 7). If the Company does not complete a Business Combination within the Combination Period, the proceeds from the sale of the Private Placement Warrants held in the Trust Account will be used to fund the redemption of the Public Shares (subject to the requirements of applicable law) and the Private Placement Warrants will expire worthless. The initial fair value of the private warrants was recorded as a liability of $6,230,000 with the excess of cash received over initial fair value of the warrants of $2,670,000 recorded as additional paid-in capital. | Note 4 — Private Placement The Sponsor has committed to purchase an aggregate of 4,666,667 Private Placement Warrants (or 5,166,667 warrants if the underwriters’ over-allotment option is exercised in full) at a price of $1.50 per Private Placement Warrant, for an aggregate price of $7,000,000 (or $7,750,000 if the over-allotment option is exercised in full), from the Company in a private placement that will occur simultaneously with the closing of the Proposed Public Offering. A portion of the proceeds from the sale of the Private Placement Warrants will be added to the net proceeds from the Proposed Public Offering held in the Trust Account. Each Private Placement Warrant is exercisable for one Class A Share at a price of $11.50 per share, subject to adjustment (see Note 7). If the Company does not complete a Business Combination within the Combination Period, the proceeds from the sale of the Private Placement Warrants held in the Trust Account will be used to fund the redemption of the Public Shares (subject to the requirements of applicable law) and the Private Placement Warrants will expire worthless.

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