QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
Interest income	$ 126,017	$ 108,746	$ 89,971	$ 79,144	$ 64,688	$ 61,989	$ 61,403	$ 59,138	$ 57,930	$ 61,691	$ 61,932	$ 62,338	$ 403,878	$ 247,218	$ 243,891
Interest expense	51,298	21,074	8,166	4,650	2,730	2,802	3,493	4,909	6,218	10,074	13,485	17,470	85,188	13,934	47,247
Net interest income	74,719	87,672	81,805	74,494	61,958	59,187	57,910	54,229	51,712	51,617	48,447	44,868	318,690	233,284	196,644
Provision for credit losses	1,173	(22)	173	(792)	3,879	(417)	44	360	(233)	1,548	1,367	4,064	532	3,866	6,746
Noninterest income	7,223	12,184	13,400	15,427	13,830	30,680	14,035	11,908	11,362	23,641	8,969	10,675	48,234	70,453	54,647
Noninterest expense	59,824	60,342	48,805	47,618	39,564	38,394	35,617	34,511	31,374	30,595	30,937	32,872	216,589	148,086	125,778
Income (loss) before taxes on income	20,945	39,536	46,227	43,095	32,345	51,890	36,284	31,266	31,933	43,115	25,112	18,607	149,803	151,785	118,767
Taxes on income	3,591	10,530	12,911	12,259	8,469	14,664	10,230	8,911	9,567	12,177	7,258	5,396	39,291	42,274	34,398
Net income	$ 17,354	$ 29,006	$ 33,316	$ 30,836	$ 23,876	$ 37,226	$ 26,054	$ 22,355	$ 22,366	$ 30,938	$ 17,854	$ 13,211	$ 110,512	$ 109,511	$ 84,369
Net income per share:
Basic	$ 0.31	$ 0.51	$ 0.59	$ 0.55	$ 0.51	$ 0.83	$ 0.58	$ 0.50	$ 0.50	$ 0.69	$ 0.40	$ 0.30	$ 1.96	$ 2.42	$ 1.89
Diluted	$ 0.31	$ 0.51	$ 0.59	$ 0.55	$ 0.51	$ 0.83	$ 0.58	$ 0.50	$ 0.50	$ 0.69	$ 0.40	$ 0.29	$ 1.96	$ 2.41	$ 1.88