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Parent Company Only Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
OPERATING INCOME: |  |  |
Total interest income | $ 1,623,713 | $ 1,444,543 | $ 1,094,835
OPERATING EXPENSE: |  |  |
Stock based compensation expense (includes restricted stock) | 12,800 | 12,200 | 11,800
FEDERAL INCOME TAX BENEFIT | (133,279) | (115,144) | (141,657)
NET INCOME | 479,386 | 419,316 | 524,516
Parent Company [Member] |  |  |
OPERATING INCOME: |  |  |
Dividends from subsidiary | 352,766 | 373,248 | 256,721
Other (expense) income | (2) | 25 | 8
Total interest income | 352,764 | 373,273 | 256,729
OPERATING EXPENSE: |  |  |
Subordinated notes interest expense |  | 38 |
Stock based compensation expense (includes restricted stock) | 12,843 | 12,181 | 11,765
Other expenses | 2,881 | 2,896 | 1,968
Total operating expense | 15,724 | 15,115 | 13,733
INCOME BEFORE INCOME TAX BENEFIT AND EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES | 337,040 | 358,158 | 242,996
FEDERAL INCOME TAX BENEFIT | 2,057 | 2,076 | 1,927
INCOME BEFORE EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES | 339,097 | 360,234 | 244,923
EQUITY IN UNDISTRIBUTED EARNINGS OF SUBSIDIARIES | 140,289 | 59,082 | 279,593
NET INCOME | $ 479,386 | $ 419,316 | $ 524,516

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