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DEPOSITS (Tables) | 12 Months Ended
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Dec. 31, 2023
Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract] |
Schedule of Deposits by Type | The following table presents the deposit balances as of December 31, (dollars in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
Deposits: |  | ​ |  |  | ​ |
Interest checking accounts | ​ | $ | 4,697,819 | ​ | $ | 4,186,505
Money market accounts | ​ |  | 3,850,679 | ​ |  | 3,922,533
Savings accounts | ​ |  | 909,223 | ​ |  | 1,130,899
Customer time deposits of $250,000 and over | ​ |  | 674,939 | ​ |  | 405,060
Other customer time deposits | ​ |  | 2,173,904 | ​ |  | 1,396,011
Time Deposits | ​ |  | 2,848,843 | ​ |  | 1,801,071
Total interest-bearing customer deposits | ​ |  | 12,306,564 | ​ |  | 11,041,008
Brokered deposits (1) | ​ |  | 548,384 | ​ |  | 7,430
Total interest-bearing deposits | ​ | $ | 12,854,948 | ​ | $ | 11,048,438
Demand deposits | ​ |  | 3,963,181 | ​ | ​ | 4,883,239
Total Deposits | ​ | $ | 16,818,129 | ​ | $ | 15,931,677
(1) Includes time deposits of $378.1 million and $7.4 million as of December 31, 2023 and 2022, respectively.
Scheduled Maturities of Time Deposits | ​ The following table presents the scheduled maturities of time deposits as of December 31, 2023 (dollars in thousands): ​
​ | ​ | ​ | ​
2024 |  | $ | 2,586,965
2025 | ​ |  | 584,229
2026 | ​ |  | 20,009
2027 | ​ |  | 17,183
2028 | ​ |  | 17,425
Thereafter | ​ |  | 1,089
Total scheduled maturities of time deposits | ​ | $ | 3,226,900

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