Segment Reporting - Reconciliations of Reportable Segment Revenues and Measures of Profit or Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Interest and dividend income	$ 296,843	$ 246,712	$ 188,248
Interest expense	110,681	87,694	25,418
Net interest income	186,162	159,018	162,830
Provision (reversal) for credit losses	2,546	1,873	125
Net interest income after provision (reversal) for credit losses	183,616	157,145	162,705
Non-interest income
Increase in value of bank-owned life insurance	4,966	4,059	3,113
Net gain on acquisition and branch sales	2,131		962
Net gain (loss) from securities transactions	220	(51,909)	5
Other	10,568	7,560	9,152
Total non-interest income	38,822	(19,129)	35,957
Non-interest expense
Salaries and employee benefits	72,786	64,384	62,006
Net occupancy and equipment	14,371	12,325	12,223
Data processing	20,004	17,433	15,883
Professional fees	6,503	5,754	4,951
Advertising and business development	5,366	5,425	5,042
Telecommunications	2,501	1,963	1,916
FDIC insurance	2,483	2,195	1,140
Courier and postage	2,599	2,046	1,881
Free nationwide ATM cost	2,127	2,073	2,103
Amortization of core deposit intangibles	4,289	3,374	4,042
Loan expense	601	540	828
Other real estate owned and repossessed assets, net	(7,525)	617	247
Merger expenses	4,461	297	594
Other	13,591	17,175	15,524
Total non-interest expense	144,157	135,601	128,380
Income (loss) before income tax	78,281	2,415	70,282
Provision (benefit) for income taxes	15,660	(5,406)	12,594
Total segment profit/(loss)	62,621	7,821	57,688
Unallocated Holding Company Amounts /Administrative Adjustments [Member]
Segment Reporting Information [Line Items]
Interest and dividend income	484	630
Interest expense	7,667	7,678	6,796
Net interest income	(7,183)	(7,048)	(6,796)
Net interest income after provision (reversal) for credit losses	(7,183)	(7,048)	(6,796)
Non-interest income
Net gain (loss) from securities transactions	294
Other	61,562	15,902	64,982
Total non-interest income	61,856	15,902	64,982
Non-interest expense
Salaries and employee benefits	165	157	154
Data processing	1
Professional fees	861	579	406
Advertising and business development	1
Telecommunications		1
Other real estate owned and repossessed assets, net	(8,492)
Merger expenses	568	297
Other	(330)	(503)	1,088
Intersegment service charges	1,440	1,352	1,296
Total non-interest expense	(5,786)	1,883	2,944
Income (loss) before income tax	60,459	6,971	55,242
Provision (benefit) for income taxes	(3,256)	(2,095)	(2,039)
Total segment profit/(loss)	63,715	9,066	57,281
Eliminations [Member]
Non-interest income
Other	(61,561)	(15,901)	(64,957)
Total non-interest income	(61,561)	(15,901)	(64,957)
Non-interest expense
Income (loss) before income tax	(61,561)	(15,901)	(64,957)
Total segment profit/(loss)	(61,561)	(15,901)	(64,957)
Operating Segments [Member] | Equity Bank [Member]
Segment Reporting Information [Line Items]
Interest and dividend income	296,359	246,082	188,248
Interest expense	103,014	80,016	18,622
Net interest income	193,345	166,066	169,626
Provision (reversal) for credit losses	2,546	1,873	125
Net interest income after provision (reversal) for credit losses	190,799	164,193	169,501
Non-interest income
Increase in value of bank-owned life insurance	4,966	4,059	3,113
Net gain on acquisition and branch sales	2,131		962
Net gain (loss) from securities transactions	(74)	(51,909)	5
Other	10,567	7,559	9,127
Total non-interest income	38,527	(19,130)	35,932
Non-interest expense
Salaries and employee benefits	72,621	64,227	61,852
Net occupancy and equipment	14,371	12,325	12,223
Data processing	20,003	17,433	15,883
Professional fees	5,642	5,175	4,545
Advertising and business development	5,365	5,425	5,042
Telecommunications	2,501	1,962	1,916
FDIC insurance	2,483	2,195	1,140
Courier and postage	2,599	2,046	1,881
Free nationwide ATM cost	2,127	2,073	2,103
Amortization of core deposit intangibles	4,289	3,374	4,042
Loan expense	601	540	828
Other real estate owned and repossessed assets, net	967	617	247
Merger expenses	3,893		594
Other	13,921	17,678	14,436
Intersegment service charges	(1,440)	(1,352)	(1,296)
Total non-interest expense	149,943	133,718	125,436
Income (loss) before income tax	79,383	11,345	79,997
Provision (benefit) for income taxes	18,916	(3,311)	14,633
Total segment profit/(loss)	60,467	14,656	65,364
Service Charges and Fees [Member]
Non-interest income
Non-interest income	9,830	10,187	10,632
Service Charges and Fees [Member] | Operating Segments [Member] | Equity Bank [Member]
Non-interest income
Non-interest income	9,830	10,187	10,632
Debit Card Income [Member]
Non-interest income
Non-interest income	10,246	10,322	10,677
Debit Card Income [Member] | Operating Segments [Member] | Equity Bank [Member]
Non-interest income
Non-interest income	10,246	10,322	10,677
Mortgage Banking [Member]
Non-interest income
Non-interest income	861	652	1,416
Mortgage Banking [Member] | Operating Segments [Member] | Equity Bank [Member]
Non-interest income
Non-interest income	$ 861	$ 652	$ 1,416