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Subsequent Events - Narrative (Details) - Forecast - Subsequent Event	3 Months Ended
	Dec. 31, 2020 USD ($) $ / shares
BankMobile Technologies, Inc.
Subsequent Event [Line Items]
Share price (in dollars per share) | $ / shares	$ 10.38
BM Technologies Inc.
Subsequent Event [Line Items]
Enterprise value	$ 140,000,000.0
Sponsor entity adjustment	9,300,000
Target net working capital	10,000,000.0
Cash reserve	10,000,000.0
BankMobile Technologies, Inc.
Subsequent Event [Line Items]
Cash reserve	$ 5,000,000.0

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