FIRST BANCORP. (Holding Company Only) Financial Information (Tables)	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Statements of Financial Condition [Table Text Block]	Statements of Financial Condition As of December 31, 2022 2021 (In thousands) Assets Cash and due from banks $ 19,279 $ 20,751 Other investment securities 735 285 Investment in First Bank Puerto Rico, at equity 1,464,026 2,247,289 Investment in First Bank Insurance Agency, at equity 28,770 19,521 Investment in FBP Statutory Trust I 1,951 1,951 Investment in FBP Statutory Trust II 3,561 3,561 Dividends receivable 624 295 Other assets 430 71 Total assets $ 1,519,376 $ 2,293,724 Liabilities and Stockholders' Equity Liabilities: Other borrowings $ 183,762 $ 183,762 Accounts payable and other liabilities 10,074 8,195 Total liabilities 193,836 191,957 Stockholders' equity 1,325,540 2,101,767 Total liabilities and stockholders' equity $ 1,519,376 $ 2,293,724
Statements of Income [Table Text Block]	Statements of Income Year Ended December 31, 2022 2021 2020 (In thousands) Income Interest income on money market investments $ 79 $ 51 $ 71 Dividend income from banking subsidiaries 368,670 98,060 52,707 Dividend income from non-banking subsidiaries - 30,000 - Other income 248 154 439 Total income 368,997 128,265 53,217 Expense Other borrowings 8,253 5,135 6,355 Other operating expenses 1,730 1,929 2,097 Total expense 9,983 7,064 8,452 Gain on early extinguishment of debt - - 94 Income before income taxes and equity in undistributed earnings of subsidiaries 359,014 121,201 44,859 Income tax expense 3,448 2,854 2,429 Equity in undistributed earnings of subsidiaries (distribution in excess of earnings) (50,494) 162,678 59,843 Net income $ 305,072 $ 281,025 $ 102,273 Other comprehensive (loss) income, net of tax (720,779) (139,454) 48,691 Comprehensive (loss) income $ (415,707) $ 141,571 $ 150,964
Statements of Cash Flow of holding company [Table Text Block]	Statements of Cash Flows Year Ended December 31, 2022 2021 2020 (In thousands) Cash flows from operating activities: Net income $ 305,072 $ 281,025 $ 102,273 Adjustments to reconcile net income to net cash provided by operating activities: Stock-based compensation 148 149 231 Equity in undistributed earnings of subsidiaries 50,494 (162,678) (59,843) Gain on early extinguishment of debt - - (94) Net decrease (increase) in other assets (688) 1,657 (1,514) Net increase (decrease) in other liabilities 1,545 3,578 (459) Net cash provided by operating activities 356,571 123,731 40,594 Cash flows from investing activities: Purchase of equity securities (450) - - Return of capital from wholly-owned subsidiaries (1) 8,000 200,000 - Net cash provided by investing activities 7,550 200,000 - Cash flows from financing activities: Repurchase of common stock (277,769) (216,522) (206) Repayment of junior subordinated debentures - - (282) Dividends paid on common stock (87,824) (65,021) (43,416) Dividends paid on preferred stock - (2,453) (2,676) Redemption of preferred stock - Series A through E - (36,104) - Net cash used in financing activities (365,593) (320,100) (46,580) Net (decrease) increase in cash and cash equivalents (1,472) 3,631 (5,986) Cash and cash equivalents at beginning of the year 20,751 17,120 23,106 Cash and cash equivalents at end of year $ 19,279 $ 20,751 $ 17,120 Cash and cash equivalents include: Cash and due from banks $ 19,279 $ 20,751 $ 10,909 Money market instruments - - 6,211 $ 19,279 $ 20,751 $ 17,120 (1) During 2022, FirstBank of Puerto Rico, a wholly-owned subsidiary of First BanCorp., redeemed 0.3 million shares of its preferred stock for a total price of approximately $ 8.0 million. During 2021, FirstBank of Puerto Rico, a wholly-owned subsidiary of First BanCorp., redeemed 8 million shares of its preferred stock for a total price of approximately $ 200 million.