Deposits - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Time Deposits [Line Items]
Total time deposits that met or exceeded the FDIC insurance limit of $250,000	$ 335,565	$ 196,767
Insured Cash Sweep (“ICS”) reciprocal demand deposits	544,666	382,614
Insured Cash Sweep (“ICS”) reciprocal demand deposits included savings and money market	100,596	230,750
Reciprocal Deposits [Member]
Time Deposits [Line Items]
Insured Cash Sweep (“ICS”) reciprocal demand deposits	469,551	382,613
Insured Cash Sweep (“ICS”) reciprocal demand deposits included savings and money market	100,596	230,750
CDARS deposits included in time deposit balance	35,393	21,841
Reciprocal customer funds placed in the CDARS program	$ 35,393	$ 21,841
Reciprocal deposits, description	Reciprocal deposits are not considered brokered deposits as long as the aggregate balance is less than the lesser of 20% of total liabilities or $5 billion and Equity Bank is well capitalized and well rated. All non-reciprocal deposits and reciprocal deposits in excess of regulatory limits are considered brokered deposits.
Interest bearing domestic deposit, certificates of deposits	$ 5,000,000
Reciprocal Deposits [Member] | Minimum [Member]
Time Deposits [Line Items]
Percentage of interest bearing domestic certificates of deposit liabilities to total liabilities	20.00%