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Parent Only Financial Information - Parent Only Income Statement (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items] |  |  |
Interest and Dividends on Investments | $ 194,993 | $ 162,564 | $ 129,651
Other Operating Income | 2,781 | 2,437 | 2,588
Interest Expense | 83,261 | 57,732 | 11,308
Other Operating Expense | 15,252 | 19,169 | 11,031
Income Tax Benefit | (7,649) | (7,445) | (14,114)
NET INCOME | 29,709 | 30,075 | 48,799
Arrow |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividends from Bank Subsidiaries | 25,100 | 24,000 | 19,264
Interest and Dividends on Investments | 47 | 47 | 49
Other Operating Income | 934 | 363 | 1,095
Total Income | 26,081 | 24,410 | 20,408
Interest Expense | 685 | 685 | 685
Other Operating Expense | 1,325 | 4,280 | 1,030
Total Expense | 2,010 | 4,965 | 1,715
Income Before Income Tax Benefit and Equity in Undistributed Net Income of Subsidiaries | 24,071 | 19,445 | 18,693
Income Tax Benefit | 487 | 1,242 | 257
Equity in Undistributed Net Income of Subsidiaries | 5,151 | 9,388 | 29,849
NET INCOME | $ 29,709 | $ 30,075 | $ 48,799

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