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Non-Interest Revenues - Non-Interest Revenue by Business (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | $ 46,720 | $ 43,239 | $ 55,961
Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 42,764 | 39,558 | 52,689
Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 3,956 | 3,681 | 3,272
Interchange and card revenue |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 28,941 | 30,695 | 41,509
Interchange and card revenue | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 28,941 | 30,695 | 41,509
Deposit fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 12,815 | 7,824 | 10,039
Deposit fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 12,815 | 7,824 | 10,039
University fees - card and disbursement fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,008 | 1,039 | 1,141
University fees - subscription revenue | Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 3,956 | 3,681 | 3,272
Customers Bank Business Banking |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 2,523 | 2,071 | 1,972
Customers Bank Business Banking | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 2,523 | 2,071 | 1,972
Customers Bank Business Banking | Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Customers Bank Business Banking | Interchange and card revenue | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 781 | 794 | 782
Customers Bank Business Banking | Deposit fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,742 | 1,277 | 1,190
Customers Bank Business Banking | University fees - card and disbursement fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
Customers Bank Business Banking | University fees - subscription revenue | Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 0 | 0 | 0
BankMobile |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 44,197 | 41,168 | 53,989
BankMobile | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 40,241 | 37,487 | 50,717
BankMobile | Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 3,956 | 3,681 | 3,272
BankMobile | Interchange and card revenue | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 28,160 | 29,901 | 40,727
BankMobile | Deposit fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 11,073 | 6,547 | 8,849
BankMobile | University fees - card and disbursement fees | Transferred at Point in Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | 1,008 | 1,039 | 1,141
BankMobile | University fees - subscription revenue | Transferred over Time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | $ 3,956 | $ 3,681 | $ 3,272

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