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COMMITMENTS AND CONTINGENCIES (Tables) | 6 Months Ended
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Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract] |
Deferred FI implementation costs | The following table summarizes changes in deferred implementation costs (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2022 |  | 2021 |  | 2022
Beginning balance | $ | 2,903 |  |  | $ | — |  |  | $ | 3,785 |  |  | $ | — |
Amortization | (730) |  |  | — |  |  | (1,612) |  |  | — |
Ending balance | $ | 2,173 |  |  | $ | — |  |  | $ | 2,173 |  |  | $ | — |

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