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Non-Interest Revenues - Non-interest Revenues by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | $ 11,779 | $ 10,297 | $ 35,370 | $ 32,352
Interchange and card revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 6,869 | 7,084 | 22,435 | 23,127
Deposit fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 3,642 | 2,002 | 9,199 | 5,726
Customers Bank Business Banking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 638 | 492 | 1,770 | 1,480
BankMobile |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 11,141 | 9,805 | 33,600 | 30,872
Transferred at Point in Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 10,773 | 9,347 | 32,417 | 29,625
Transferred at Point in Time | Interchange and card revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 6,869 | 7,084 | 22,435 | 23,127
Transferred at Point in Time | Deposit fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 3,642 | 2,002 | 9,199 | 5,726
Transferred at Point in Time | University fees - card and disbursement fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 262 | 261 | 783 | 772
Transferred at Point in Time | Customers Bank Business Banking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 638 | 492 | 1,770 | 1,480
Transferred at Point in Time | Customers Bank Business Banking | Interchange and card revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 181 | 181 | 580 | 588
Transferred at Point in Time | Customers Bank Business Banking | Deposit fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 457 | 311 | 1,190 | 892
Transferred at Point in Time | Customers Bank Business Banking | University fees - card and disbursement fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 0 | 0 | 0 | 0
Transferred at Point in Time | BankMobile |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 10,135 | 8,855 | 30,647 | 28,145
Transferred at Point in Time | BankMobile | Interchange and card revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 6,688 | 6,903 | 21,855 | 22,539
Transferred at Point in Time | BankMobile | Deposit fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 3,185 | 1,691 | 8,009 | 4,834
Transferred at Point in Time | BankMobile | University fees - card and disbursement fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 262 | 261 | 783 | 772
Transferred over Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 1,006 | 950 | 2,953 | 2,727
Transferred over Time | University fees - subscription revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 1,006 | 950 | 2,953 | 2,727
Transferred over Time | Customers Bank Business Banking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 0 | 0 | 0 | 0
Transferred over Time | Customers Bank Business Banking | University fees - subscription revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 0 | 0 | 0 | 0
Transferred over Time | BankMobile |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | 1,006 | 950 | 2,953 | 2,727
Transferred over Time | BankMobile | University fees - subscription revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Non-interest income | $ 1,006 | $ 950 | $ 2,953 | $ 2,727

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