Non-Interest Revenues - Narrative (Details) - BankMobile	12 Months Ended
Dec. 31, 2020
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, timing of satisfaction of performance obligation and payment	three
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, timing of satisfaction of performance obligation and payment	five

Description of effect, from relationship that timing of satisfaction of performance obligation has on timing of payment, on right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time and on obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045

Name:	us-gaap_ContractWithCustomerTimingOfSatisfactionOfPerformanceObligationAndPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration