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Business Combinations - Unaudited Pro Forma Financial Information (Details) - Heartland BancCorp - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Business Combination [Line Items] |  |  |  |
Net Interest Income | $ 75,725 | $ 72,553 | $ 221,871 | $ 207,812
Non-interest Income | 18,429 | 16,523 | 50,830 | 56,001
Total Revenue | 94,154 | 89,076 | 272,701 | 263,813
Provision for Loan Losses Expense | 700 | 1,219 | 984 | 1,476
Non-interest Expense | 49,564 | 46,307 | 148,885 | 145,488
Income Before Income Taxes | 43,890 | 41,550 | 122,832 | 116,849
Income Tax Expense | 8,714 | 8,525 | 25,868 | 25,051
Net Income | $ 35,176 | $ 33,025 | $ 96,964 | $ 91,798
Earnings Per Share (in dollars per share) | $ 0.94 | $ 0.88 | $ 2.59 | $ 2.46
Diluted Earnings Per Share (in dollars per share) | $ 0.94 | $ 0.88 | $ 2.59 | $ 2.46

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