v3.26.3
ACQUISITIONS - Summary of Pro Forma Financial Information (Details) - First Savings - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Business Combination [Line Items]    
Total revenue (net interest income plus noninterest income) $ 560,017 $ 757,511
Net income 158,346 253,686
Net income available to common stockholders $ 156,940 $ 251,811
Earnings per common share:    
Basic (in dollars per share) $ 2.51 $ 3.96
Diluted (in dollars per share) $ 2.50 $ 3.94