Segment Reporting - Additional Information (Detail)	12 Months Ended
Dec. 31, 2025 Segment
Segment Reporting [Abstract]
Number of operating segment	1
Number of reportable segment	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	us-gaap:ExecutiveCommitteeMember
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description	For Equity Bancshares Inc., the executive leadership team uses gross profit and profit or loss from operations before interest and income taxes to allocate resources for in the annual budget and forecasting process. The chief operating decision maker considers budget-to-actual variances on a monthly basis for profit measures when making decisions about allocating capital and personnel to the operating segment. For Equity Bank, the executive leadership team uses net-interest income and non-interest income to allocate resources (including employees, financial, or capital resources) to that segment in the annual budget and forecasting process and uses that measure as a basis for evaluating lending terms for customer loans.

1

Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description

For Equity Bancshares Inc., the executive leadership team uses gross profit and profit or loss from operations before interest and income taxes to allocate resources for in the annual budget and forecasting process. The chief operating decision maker considers budget-to-actual variances on a monthly basis for profit measures when making decisions about allocating capital and personnel to the operating segment. For Equity Bank, the executive leadership team uses net-interest income and non-interest income to allocate resources (including employees, financial, or capital resources) to that segment in the annual budget and forecasting process and uses that measure as a basis for evaluating lending terms for customer loans.