OPERATING SEGMENTS - Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Interest income	$ 369,835	$ 340,933	$ 200,393
Interest expense	135,566	91,608	22,577
Net interest income (loss)	234,269	249,325	177,816
Provision (credit) for credit losses	3,790	14,500	5,605
Net interest income after provision for credit losses	230,479	234,825	172,211
Non-interest income:
Service charges on deposit accounts	13,905	14,175	8,668
Other service charges and fees	2,713	3,177	1,833
Interchange fees	17,914	18,914	12,702
Bank owned life insurance	3,820	3,319	2,101
Securities (loss) gain	(31)	(9,716)	(82)
Other	7,555	7,732	4,554
Total non-interest income	49,762	46,705	36,961
Non-interest expense:
Salaries	80,421	76,609	57,903
Employee benefits	21,732	16,803	15,174
Occupancy	18,530	17,381	12,854
Furniture and equipment	4,325	3,987	2,981
Professional and consulting fees	6,208	6,446	3,558
FDIC and OCC assessments	4,015	3,849	2,122
ATM expense	7,226	5,821	3,873
Acquisition expense/charter conversion	3,740	9,075	6,410
Amortization of core deposit intangible	9,533	9,563	4,664
Other	20,812	26,769	15,469
Total non-interest expense	182,276	184,726	130,483
Income before income taxes	97,965	96,804	78,689
Income tax (benefit) expense	20,771	21,347	15,770
Net income	77,194	75,457	62,919
Total Assets	8,004,778	7,999,345
Operating Segments
Segment Reporting Information [Line Items]
Interest income	369,835	340,933	200,393
Interest expense	135,566	91,608	22,577
Net interest income (loss)	234,269	249,325	177,816
Provision (credit) for credit losses	3,790	14,500	5,605
Net interest income after provision for credit losses	230,479	234,825	172,211
Non-interest income:
Service charges on deposit accounts	13,905	14,175	8,668
Other service charges and fees	2,713	3,177	1,833
Interchange fees	17,914	18,914	12,702
Bank owned life insurance	3,820	3,319	2,101
Securities (loss) gain	(31)	(9,716)	(82)
Other	11,441	16,836	11,739
Total non-interest income	49,762	46,705	36,961
Non-interest expense:
Salaries	80,421	76,609	57,903
Employee benefits	21,732	16,803	15,174
Occupancy	18,530	17,381	12,854
Furniture and equipment	4,325	3,987	2,981
Professional and consulting fees	6,208	6,446	3,558
FDIC and OCC assessments	4,015	3,849	2,122
ATM expense	7,226	5,821	3,873
Bank communications and data processing	4,136	6,350	4,115
Acquisition expense/charter conversion	3,740	9,075	6,410
Amortization of core deposit intangible	9,533	9,563	4,664
Other	22,410	28,842	16,829
Total non-interest expense	182,276	184,726	130,483
Income before income taxes	97,965	96,804	78,689
Income tax (benefit) expense	20,771	21,347	15,770
Net income	77,194	75,457	62,919
Total Assets	8,004,778	7,999,345	6,461,717
Net Loans	5,354,713	5,118,924	3,739,683
Commercial/ Retail Bank
Non-interest income:
Interchange fees	17,914	18,914	12,702
Securities (loss) gain	(31)	(9,716)	(82)
Total non-interest income	46,392	36,856	29,991
Commercial/ Retail Bank | Operating Segments
Segment Reporting Information [Line Items]
Interest income	369,455	340,566	199,937
Interest expense	127,976	83,497	14,979
Net interest income (loss)	241,479	257,069	184,958
Provision (credit) for credit losses	3,790	14,500	5,605
Net interest income after provision for credit losses	237,689	242,569	179,353
Non-interest income:
Service charges on deposit accounts	13,899	14,175	8,575
Other service charges and fees	2,713	3,177	1,833
Interchange fees	17,914	18,914	12,702
Bank owned life insurance	3,804	3,303	1,998
Securities (loss) gain	(31)	(9,716)	(82)
Other	8,093	7,003	4,965
Total non-interest income	46,392	36,856	29,991
Non-interest expense:
Salaries	77,473	73,563	54,947
Employee benefits	14,598	12,252	10,135
Occupancy	18,468	17,304	12,752
Furniture and equipment	4,325	3,987	2,981
Professional and consulting fees	5,296	5,279	2,914
FDIC and OCC assessments	4,015	3,849	2,122
ATM expense	7,226	5,821	3,873
Bank communications and data processing	4,030	6,252	4,006
Acquisition expense/charter conversion	109	6,501	2,514
Amortization of core deposit intangible	9,533	9,563	4,664
Other	21,084	27,762	15,991
Total non-interest expense	166,157	172,133	116,899
Income before income taxes	117,924	107,292	92,445
Income tax (benefit) expense	25,821	23,892	19,250
Net income	92,103	83,400	73,195
Total Assets	7,979,880	7,971,373	6,428,889
Net Loans	5,350,874	5,114,434	3,734,659
Mortgage Banking Division
Non-interest income:
Interchange fees	0	0	0
Securities (loss) gain	0	0	0
Total non-interest income	3,354	2,866	4,303
Mortgage Banking Division | Operating Segments
Segment Reporting Information [Line Items]
Interest income	342	331	439
Interest expense	154	141	106
Net interest income (loss)	188	190	333
Provision (credit) for credit losses	0	0	0
Net interest income after provision for credit losses	188	190	333
Non-interest income:
Service charges on deposit accounts	6	0	93
Other service charges and fees	0	0	0
Interchange fees	0	0	0
Bank owned life insurance	0	0	0
Securities (loss) gain	0	0	0
Other	3,348	2,866	4,210
Total non-interest income	3,354	2,866	4,303
Non-interest expense:
Salaries	2,948	3,046	2,956
Employee benefits	1,533	1,416	1,925
Occupancy	62	77	102
Furniture and equipment	0	0	0
Professional and consulting fees	44	31	51
FDIC and OCC assessments	0	0	0
ATM expense	0	0	0
Bank communications and data processing	98	88	105
Acquisition expense/charter conversion	0	0	0
Amortization of core deposit intangible	0	0	0
Other	441	533	354
Total non-interest expense	5,126	5,191	5,493
Income before income taxes	(1,584)	(2,135)	(857)
Income tax (benefit) expense	(401)	(540)	(217)
Net income	(1,183)	(1,595)	(640)
Total Assets	10,136	10,058	18,194
Net Loans	3,839	4,490	5,024
Holding Company
Non-interest income:
Interchange fees	0	0	0
Securities (loss) gain	0	0	0
Total non-interest income	16	6,983	2,667
Holding Company | Operating Segments
Segment Reporting Information [Line Items]
Interest income	38	36	17
Interest expense	7,436	7,970	7,492
Net interest income (loss)	(7,398)	(7,934)	(7,475)
Provision (credit) for credit losses	0	0	0
Net interest income after provision for credit losses	(7,398)	(7,934)	(7,475)
Non-interest income:
Service charges on deposit accounts	0	0	0
Other service charges and fees	0	0	0
Interchange fees	0	0	0
Bank owned life insurance	16	16	103
Securities (loss) gain	0	0	0
Other	0	6,967	2,564
Total non-interest income	16	6,983	2,667
Non-interest expense:
Salaries	0	0	0
Employee benefits	5,601	3,135	3,114
Occupancy	0	0	0
Furniture and equipment	0	0	0
Professional and consulting fees	868	1,136	593
FDIC and OCC assessments	0	0	0
ATM expense	0	0	0
Bank communications and data processing	8	10	4
Acquisition expense/charter conversion	3,631	2,574	3,896
Amortization of core deposit intangible	0	0	0
Other	885	547	484
Total non-interest expense	10,993	7,402	8,091
Income before income taxes	(18,375)	(8,353)	(12,899)
Income tax (benefit) expense	(4,649)	(2,005)	(3,263)
Net income	(13,726)	(6,348)	(9,636)
Total Assets	14,762	17,914	14,634
Net Loans	$ 0	$ 0	$ 0