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OFG Bancorp (Holding Company Only) Financial Information (Condensed Statement Of Cash Flows Information) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities: |  |  |
Net income | $ 74,327 | $ 53,841 | $ 84,410
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Stock-based compensation | 2,170 | 2,134 | 1,401
Deferred income tax expense, net | 27,846 | (4,068) | 14,772
Net (increase) decrease in other assets | (7,199) | (1,957) | 5,486
Net (decrease) increase in accrued expenses and other liabilities | (17,436) | (27,761) | (2,028)
Net cash (used in) provided by operating activities | (88,621) | 109,617 | 133,355
Cash flows from investing activities: |  |  |
Proceeds from sales of premises and equipment | 52 | 2,225 | 1,668
Additions to premises and equipment | (15,263) | (12,966) | (11,491)
Net cash provided by (used in) investing activities | 881,082 | 842,173 | (488,767)
Cash flows from financing activities: |  |  |
Proceeds from (payments to) exercise of stock options and lapsed restricted units, net | 583 | 1,294 | 508
Net cash provided by (used in) financing activities | 510,359 | (549,096) | 317,242
Cash and cash equivalents at beginning of year | 844,532 | 442,103 |
Cash and cash equivalents at end of year | 2,142,294 | 844,532 | 442,103
Parent Company [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income | 74,327 | 53,841 | 84,410
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed earnings from subsidiary | (845) | (5,097) | (5,805)
Stock-based compensation | 2,170 | 2,134 | 1,401
Deferred income tax expense, net | (2,637) | 0 | 2,230
Net (increase) decrease in other assets | 12 | 458 | 372
Net (decrease) increase in accrued expenses and other liabilities | (486) | 64 | 203
Net cash (used in) provided by operating activities | 33,845 | 23,576 | 40,101
Cash flows from investing activities: |  |  |
Net increase in due from bank subsidiary, net | (1,984) | 0 | 0
Net decrease (increase) in due to non-bank subsidiary, net | 0 | (14) | 14
Proceeds from sales of premises and equipment | 282 | 310 | 200
Additions to premises and equipment | (295) | (319) | (97)
Net cash provided by (used in) investing activities | (12,713) | (15,261) | (1,012)
Cash flows from financing activities: |  |  |
Proceeds from (payments to) exercise of stock options and lapsed restricted units, net | 583 | 1,294 | 508
Purchase of treasury stock | (2,226) | 0 | 0
Dividends paid | (20,892) | (20,884) | (24,820)
Net cash provided by (used in) financing activities | (22,535) | (19,590) | (24,312)
Net change in cash and cash equivalents | (1,403) | (11,275) | 14,777
Cash and cash equivalents at beginning of year | 27,932 | 39,207 | 24,430
Cash and cash equivalents at end of year | 26,529 | 27,932 | 39,207
Bank Subsidiary [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income | 74,899 | 56,114 | 87,128
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed earnings from subsidiary | 74,899 | 56,114 | 87,128
Dividends from subsidiary | 26,100 | 20,000 | 37,700
Cash flows from investing activities: |  |  |
Capital contribution to banking subsidiary | (1,703) | (1,720) | (1,105)
Nonbank Subsidiaries [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income | 273 | 2,824 | 3,087
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed earnings from subsidiary | 273 | 2,824 | 3,087
Dividends from subsidiary | 9,531 | 6,017 | 4,000
Cash flows from investing activities: |  |  |
Capital contribution to banking subsidiary | $ (9,013) | $ (13,518) | $ (24)

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