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Employee Benefits - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) Participant Agreement	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	72-1532188
Defined Contribution Profit Sharing Plan And Retirement Savings 401 (k) Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions charged to expense	$ 2,106	$ 1,291	$ 1,346
Pentegra Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer Identification Number	13-5645888
Plan number	333
Number of collective bargaining agreements \| Agreement	0
Pentegra Defined Benefit Plan [Member] \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of contributions to plan	5.00%
Pentegra Defined Benefit Plan [Member] \| First Independence Corporation and Subsidiary [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of participants retaining benefits under the plan \| Participant	47
Equity Bank Executive Deferred Compensation Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum contributions employees may contribute	$ 850	$ 408	$ 66
Percentage of contributions to plan	10.00%