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Deposits (Tables) | 12 Months Ended
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Dec. 31, 2025
Deposits |
Schedule of deposits and related interest expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2025 | ​ | 2024 |
​ | ​ | (Dollars in Thousands) |
Deposits: | ​ ​ ​ | ​ | ​ ​ ​ | ​ ​ ​ | ​ | ​ ​ ​ | ​
Demand - non-interest bearing | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic | ​ | $ | 3,727,802 | ​ | $ | 3,790,875 | ​
Foreign | ​ |  | 758,406 | ​ |  | 821,469 | ​
Total demand non-interest bearing | ​ |  | 4,486,208 | ​ |  | 4,612,344 | ​
Savings and interest bearing demand | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic | ​ |  | 3,427,721 | ​ |  | 3,317,461 | ​
Foreign | ​ |  | 1,321,257 | ​ |  | 1,282,496 | ​
Total savings and interest bearing demand | ​ |  | 4,748,978 | ​ |  | 4,599,957 | ​
Time, certificates of deposit $100,000 or more | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic | ​ |  | 967,848 | ​ |  | 876,254 | ​
Foreign | ​ |  | 1,577,823 | ​ |  | 1,390,566 | ​
Less than $100,000 | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic | ​ |  | 327,741 | ​ |  | 317,220 | ​
Foreign | ​ |  | 327,908 | ​ |  | 315,503 | ​
Total time, certificates of deposit | ​ |  | 3,201,320 | ​ |  | 2,899,543 | ​
Total deposits | ​ | $ | 12,436,506 | ​ | $ | 12,111,844 | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2025 | ​ | 2024 | ​ | 2023 |
​ | ​ | (Dollars in Thousands) |
Interest expense: | ​ ​ ​ | ​ | ​ ​ ​ | ​ ​ ​ | ​ | ​ ​ ​ | ​ ​ ​ | ​ | ​ ​ ​ | ​
Savings and interest bearing demand | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic |  | $ | 57,594 | ​ | $ | 56,759 | ​ | $ | 42,148 | ​
Foreign |  | ​ | 25,326 | ​ |  | 25,153 | ​ |  | 18,189 | ​
Total savings and interest bearing demand |  | ​ | 82,920 | ​ |  | 81,912 | ​ |  | 60,337 | ​
Time, certificates of deposit $100,000 or more | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic |  | ​ | 32,337 | ​ |  | 32,283 | ​ |  | 18,597 | ​
Foreign |  | ​ | 52,134 | ​ |  | 47,420 | ​ |  | 25,471 | ​
Less than $100,000 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Domestic |  | ​ | 9,344 | ​ |  | 8,748 | ​ |  | 4,592 | ​
Foreign |  | ​ | 9,101 | ​ |  | 8,517 | ​ |  | 4,498 | ​
Total time, certificates of deposit |  | ​ | 102,916 | ​ |  | 96,968 | ​ |  | 53,158 | ​
Total interest expense on deposits | ​ | $ | 185,836 | ​ | $ | 178,880 | ​ | $ | 113,495 | ​
​
Scheduled maturities of time deposits | Scheduled maturities of time deposits as of December 31, 2025 were as follows: ​
​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Total |
​ | ​ | (in thousands) |
2026 | ​ | $ | 3,072,855 | ​
2027 | ​ |  | 94,969 | ​
2028 | ​ |  | 25,054 | ​
2029 | ​ |  | 8,139 | ​
2030 | ​ |  | 302 | ​
Thereafter | ​ |  | 1 | ​
Total | ​ | $ | 3,201,320 | ​
Scheduled maturities of time deposits in amounts of $100,000 or more | ​
​ | ​ | ​ | ​
​ | ​ | Total
​ | ​ | (in thousands)
Due within 3 months or less | ​ ​ ​ | $ | 1,132,341
Due after 3 months and within 6 months | ​ |  | 854,833
Due after 6 months and within 12 months | ​ |  | 469,068
Due after 12 months | ​ |  | 89,429
​ | ​ | $ | 2,545,671

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