v3.25.4
Condensed Financial Information (Parent Company Only) - Condensed Statements of Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Condensed Income Statements, Captions [Line Items]      
Interest income $ 226,081 $ 186,162 $ 159,018
Expenses      
Interest expense 104,754 110,681 87,694
Net income (loss) and net income (loss) allocable to common stockholders 22,726 62,621 7,821
Equity Bancshares, Inc. [Member]      
Condensed Income Statements, Captions [Line Items]      
Dividends from Equity Bank 20,000 25,000 32,500
Interest income   291  
Other income 2 295 542
Total income 21,302 25,586 33,042
Expenses      
Interest expense 7,221 7,668 7,678
Other expenses 6,755 (4,845) 3,058
Total expenses 13,976 2,823 10,736
Income before income tax and equity in undistributed income (loss) of subsidiaries 7,326 22,763 22,306
Income tax benefit 3,463 3,297 2,114
Income before equity in undistributed income (loss) of subsidiaries 10,789 26,060 24,420
Equity in undistributed income (loss) 11,843 35,468 (17,844)
Net income (loss) and net income (loss) allocable to common stockholders 22,726 62,621 7,821
Equity Bancshares, Inc. [Member] | EBAC [Member]      
Expenses      
Equity in undistributed income (loss) (374) (358) (305)
Equity Bancshares, Inc. [Member] | ERMI [Member]      
Condensed Income Statements, Captions [Line Items]      
Dividends from Equity Bank 1,300    
Expenses      
Equity in undistributed income (loss) $ 468 $ 1,451 $ 1,550