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STOCKHOLDERS' EQUITY (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Change in Accumulated Other Comprehensive Income | The change in AOCI for the three and nine months ended September 30, 2024 is summarized as follows, net of tax (dollars in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Unrealized Gains |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | (Losses) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | for AFS | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​
​ | ​ | Gains (Losses) | ​ | Securities | ​ | Change in Fair | ​ | Gains | ​ | ​ | ​
​ | ​ | on AFS | ​ | Transferred to | ​ | Value of Cash | ​ | (Losses) on | ​ | ​ | ​
​ | ​ | Securities | ​ | HTM | ​ | Flow Hedge | ​ | BOLI | ​ | Total
AOCI (loss) – June 30, 2024 | ​ | $ | (330,804) | ​ | $ | 1 | ​ | $ | (52,775) | ​ | $ | 991 | ​ | $ | (382,587)
Other comprehensive (loss) income: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  |
Other comprehensive income before reclassification | ​ |  | 66,856 | ​ | ​ | — | ​ | ​ | 23,589 | ​ | ​ | — | ​ |  | 90,445
Amounts reclassified from AOCI into earnings | ​ |  | (3) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (162) | ​ |  | (165)
Net current period other comprehensive income (loss) | ​ |  | 66,853 | ​ |  | — | ​ |  | 23,589 | ​ |  | (162) | ​ |  | 90,280
AOCI (loss) – September 30, 2024 | ​ | $ | (263,951) | ​ | $ | 1 | ​ | $ | (29,186) | ​ | $ | 829 | ​ | $ | (292,307)
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Unrealized Gains |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | (Losses) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | for AFS | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​
​ | ​ | Gains (Losses) | ​ | Securities | ​ | Change in Fair | ​ | Gains | ​ | ​ | ​
​ | ​ | on AFS | ​ | Transferred to | ​ | Value of Cash | ​ | (Losses) on | ​ | ​ | ​
​ | ​ | Securities | ​ | HTM | ​ | Flow Hedge | ​ | BOLI | ​ | Total
AOCI (loss) – December 31, 2023 | ​ | $ | (302,532) | ​ | $ | 6 | ​ | $ | (42,165) | ​ | $ | 1,342 | ​ | $ | (343,349)
Other comprehensive (loss) income: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  |
Other comprehensive income (loss) before reclassification | ​ |  | 33,438 | ​ | ​ | — | ​ | ​ | 12,979 | ​ | ​ | (16) | ​ |  | 46,401
Amounts reclassified from AOCI into earnings | ​ |  | 5,143 | ​ | ​ | (5) | ​ | ​ | — | ​ | ​ | (497) | ​ |  | 4,641
Net current period other comprehensive income (loss) | ​ |  | 38,581 | ​ |  | (5) | ​ |  | 12,979 | ​ |  | (513) | ​ |  | 51,042
AOCI (loss) – September 30, 2024 | ​ | $ | (263,951) | ​ | $ | 1 | ​ | $ | (29,186) | ​ | $ | 829 | ​ | $ | (292,307)
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The change in AOCI for the three and nine months ended September 30, 2023 is summarized as follows, net of tax (dollars in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Unrealized Gain |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | (Losses) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | for AFS | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​
​ | ​ | Gains (Losses) | ​ | Securities | ​ | Change in Fair | ​ | Gains | ​ | ​ | ​
​ | ​ | on AFS | ​ | Transferred to | ​ | Value of Cash | ​ | (Losses) | ​ | ​ | ​
​ | ​ | Securities | ​ | HTM | ​ | Flow Hedge | ​ | on BOLI | ​ | Total
AOCI (loss) – June 30, 2023 | ​ | $ | (353,811) | ​ | $ | 12 | ​ | $ | (57,221) | ​ | $ | 153 | ​ | $ | (410,867)
Other comprehensive (loss) income: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive loss before reclassification | ​ |  | (79,193) | ​ | ​ | — | ​ | ​ | (9,581) | ​ | ​ | — | ​ | ​ | (88,774)
Amounts reclassified from AOCI into earnings | ​ |  | 21,799 | ​ | ​ | (2) | ​ | ​ | — | ​ | ​ | (62) | ​ | ​ | 21,735
Net current period other comprehensive loss | ​ |  | (57,394) | ​ |  | (2) | ​ |  | (9,581) | ​ |  | (62) | ​ |  | (67,039)
AOCI (loss) – September 30, 2023 | ​ | $ | (411,205) | ​ | $ | 10 | ​ | $ | (66,802) | ​ | $ | 91 | ​ | $ | (477,906)
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Unrealized Gain |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | (Losses) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | for AFS | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​
​ | ​ | Gains (Losses) | ​ | Securities | ​ | Change in Fair | ​ | Gains | ​ | ​ | ​
​ | ​ | on AFS | ​ | Transferred to | ​ | Value of Cash | ​ | (Losses) | ​ | ​ | ​
​ | ​ | Securities | ​ | HTM | ​ | Flow Hedge | ​ | on BOLI | ​ | Total
AOCI (loss) – December 31, 2022 | ​ | $ | (363,919) | ​ | $ | 17 | ​ | $ | (54,610) | ​ | $ | 226 | ​ | $ | (418,286)
Other comprehensive (loss) income: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive (loss) income before reclassification | ​ |  | (79,669) | ​ | ​ | — | ​ | ​ | (12,192) | ​ | ​ | 10 | ​ | ​ | (91,851)
Amounts reclassified from AOCI into earnings | ​ |  | 32,383 | ​ | ​ | (7) | ​ | ​ | — | ​ | ​ | (145) | ​ | ​ | 32,231
Net current period other comprehensive income (loss) | ​ |  | (47,286) | ​ |  | (7) | ​ |  | (12,192) | ​ |  | (135) | ​ |  | (59,620)
AOCI (loss) – September 30, 2023 | ​ | $ | (411,205) | ​ | $ | 10 | ​ | $ | (66,802) | ​ | $ | 91 | ​ | $ | (477,906)
​

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