v3.25.4
Condensed financial statements of the parent company only - Condensed Statements of Cash Flows (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities      
Net Income (Loss) $ 231,942 $ 216,316 $ 225,492
Adjustments to reconcile net income to operating cash flows      
Depreciation, accretion and amortization 36,822 42,158 36,212
Provision for credit losses (recoveries) 217 1,662 4,452
Share-based payments and settlements 22,246 21,002 20,812
Net (gains) losses on other real estate owned 0 (50) 40
(Increase) decrease in carrying value of equity method investments (221) 334 165
Dividends received from equity method investments 60 135 5,256
Changes in operating assets and liabilities      
Cash provided by (used in) operating activities 279,561 265,432 300,290
Cash flows from investing activities      
(Increase) decrease in securities purchased under agreements to resell having original maturities of 3 months of less 433,004 (545,053) (127,403)
Short-term investments other than restricted cash: proceeds from maturities and sales 1,390,104 2,232,366 1,960,286
Short-term investments other than restricted cash: purchases (1,554,031) (1,764,289) (2,057,132)
Available-for-sale investments: proceeds from maturities and pay downs 317,335 507,014 292,049
Available-for-sale investments: purchases (669,610) (951,990) (71,859)
Held-to-maturity investments: proceeds from maturities and pay downs 251,052 258,489 276,606
Net (increase) decrease in loans to third parties 226,958 236,975 457,295
Additions to premises, equipment and computer software (24,752) (21,049) (26,932)
Proceeds from sale of other real estate owned 0 588 646
Cash provided by (used in) investing activities 102,359 (581,020) 681,801
Cash flows from financing activities      
Net increase (decrease) in deposits (331,196) 873,120 (1,198,146)
Repayment of long-term debt (100,000) 0 (75,000)
Common shares repurchased (146,686) (155,305) (88,590)
Cash dividends paid on common shares (77,723) (79,581) (86,186)
Cash provided by (used in) financing activities (745,637) 735,560 (1,447,922)
Cash, cash equivalents and restricted cash: beginning of year 2,088,542 1,672,260 2,116,546
Cash, cash equivalents and restricted cash: end of year 1,776,683 2,088,542 1,672,260
Components of cash, cash equivalents and restricted cash at end of year      
Cash and cash equivalents 1,708,936 1,998,112 1,646,648
Restricted cash included in short-term investments on the consolidated balance sheets 67,747 90,430 25,612
Total cash, cash equivalents and restricted cash at end of year 1,776,683 2,088,542 1,672,260
Supplemental disclosure of non-cash items      
Transfer to (out of) other real estate owned 0 87 336
Initial recognition of right-of-use assets and operating lease liabilities 5,101 2,068 3,268
Bank of N.T. Butterfield & Son Ltd      
Cash flows from operating activities      
Net Income (Loss) 231,942 216,316 225,492
Adjustments to reconcile net income to operating cash flows      
Depreciation, accretion and amortization 15,818 16,628 14,792
Provision for credit losses (recoveries) (2,725) 1,834 4,755
Share-based payments and settlements 22,246 21,003 20,812
Net change in equity securities at fair value 0 0 236
Net (gains) losses on other real estate owned 0 (50) 40
(Increase) decrease in carrying value of equity method investments (112) 483 313
Dividends received from equity method investments 0 0 5,096
Equity in undistributed earnings of subsidiaries (22,137) 2,827 55,415
Changes in operating assets and liabilities      
(Increase) decrease in accrued interest receivable and other assets 263 (2,549) 10,626
Increase (decrease) in employee benefit plans, accrued interest payable and other liabilities (1,820) (13,456) 10,955
Cash provided by (used in) operating activities 287,749 237,382 237,702
Cash flows from investing activities      
(Increase) decrease in securities purchased under agreements to resell having original maturities of 3 months of less 90,674 96,600 (127,403)
Short-term investments other than restricted cash: proceeds from maturities and sales 326,927 781,459 357,451
Short-term investments other than restricted cash: purchases (302,226) (417,695) (869,466)
Available-for-sale investments: proceeds from maturities and pay downs 117,277 156,134 131,261
Available-for-sale investments: purchases (320,255) (694,620) (41,426)
Held-to-maturity investments: proceeds from maturities and pay downs 100,789 99,962 112,348
Net (increase) decrease in loans to third parties 137,047 136,147 117,772
Additions to premises, equipment and computer software (11,801) (8,937) (13,267)
Proceeds from sale of other real estate owned 0 588 646
Injection of capital in subsidiary (430) 0 (58,477)
Return of capital from a subsidiary 0 (1,878) 0
Cash provided by (used in) investing activities 137,405 150,453 (367,046)
Cash flows from financing activities      
Net increase (decrease) in deposits (326,738) 281,518 (147,941)
Repayment of long-term debt (100,000) 0 (75,000)
Common shares repurchased (146,686) (155,305) (88,590)
Cash dividends paid on common shares (77,723) (79,581) (86,186)
Cash provided by (used in) financing activities (651,147) 46,632 (397,717)
Net increase (decrease) in cash, cash equivalents and restricted cash (225,993) 434,467 (527,061)
Cash, cash equivalents and restricted cash: beginning of year 818,299 383,832 910,893
Cash, cash equivalents and restricted cash: end of year 592,306 818,299 383,832
Components of cash, cash equivalents and restricted cash at end of year      
Cash and cash equivalents 582,162 799,149 370,484
Restricted cash included in short-term investments on the consolidated balance sheets 10,144 19,150 13,348
Total cash, cash equivalents and restricted cash at end of year 592,306 818,299 383,832
Supplemental disclosure of cash flow information      
Cash interest paid 47,883 58,864 39,412
Supplemental disclosure of non-cash items      
Transfer to (out of) other real estate owned 0 87 336
Initial recognition of right-of-use assets and operating lease liabilities 77 0 0
Bank of N.T. Butterfield & Son Ltd | Customers      
Cash flows from investing activities      
Net decrease in loans to subsidiaries $ (597) $ 2,693 $ 23,515