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COMMITMENTS AND CONTINGENCIES (Tables) | 9 Months Ended
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Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract] |
Deferred FI implementation costs | The following table summarizes changes in deferred FI implementation costs (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2020 |  | 2019 |  | 2020
Beginning balance | $ | 12,181 |  |  | $ | 6,384 |  |  | $ | 15,877 |  |  | $ | 8,383 |
Recoveries through FI Share | (1,157) |  |  | — |  |  | (3,469) |  |  | — |
Amortization | (789) |  |  | (958) |  |  | (2,173) |  |  | (2,957) |
Impairment | — |  |  | (683) |  |  | — |  |  | (683) |
Ending balance | $ | 10,235 |  |  | $ | 4,743 |  |  | $ | 10,235 |  |  | $ | 4,743 |

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