v3.26.1
Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]            
Net income attributable to Amerant Bancorp Inc. $ 21,043 $ 17,873 $ 23,002 $ 11,958 $ 38,916 $ 34,960
Basic weighted average shares outstanding (in shares) 39,316,906   41,805,550   39,813,572 41,909,948
Dilutive effect of share-based compensation awards (in shares) 192,677   68,001   193,956 119,627
Diluted weighted average shares outstanding (in shares) 39,509,583   41,873,551   40,007,528 42,029,575
Basic earnings per common share (in dollars per share) $ 0.54   $ 0.55   $ 0.98 $ 0.83
Diluted earnings per common share (in dollars per share) $ 0.53   $ 0.55   $ 0.97 $ 0.83