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Popular, Inc. (Holding company only) financial information (Statement of Operations) (Parenthetical) (Details) - Popular, Inc. Holding Co. - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues |  |  |
Interest income from subsidiaries and affiliate | $ 2,290 | $ 4,237 | $ 6,121
Expenses |  |  |
Operating expenses for services by subsidiaries and affiliates | 13,140 | 14,400 | 10,511
Expense reimbursement by subsidiaries for services provided by parent | $ 138,729 | $ 106,725 | $ 90,807

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