CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2020		28,663,076
Balance at Dec. 31, 2020	$ 758,669	$ 287	$ 528,715	$ 195,236	$ 34,431
Net income	81,553			81,553
Other comprehensive (loss) income	(16,189)				(16,189)
Cash dividends declared	(9,697)			(9,697)
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP (in shares)		411,482
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP	3,812	$ 4	3,808
Repurchase of common stock (in shares)		(228,655)
Repurchase of common stock	(5,659)	$ (2)	(5,657)
Stock based compensation expense	3,979		3,979
Balance at Dec. 31, 2021	816,468	$ 289	530,845	267,092	18,242
Balance (in shares) at Dec. 31, 2021		28,845,903
Net income	51,432			51,432
Other comprehensive (loss) income	(161,503)				(161,503)
Cash dividends declared	(15,378)			(15,378)
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP (in shares)		925,721
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP	77	$ 9	68
Repurchase of common stock (in shares)		(831,911)
Repurchase of common stock	(23,605)	$ (8)	(23,597)
Stock based compensation expense	9,042		9,042
Impact of merger wit CBTX (in shares)		24,015,272
Impact of merger with CBTX	706,643	$ 240	706,403
Balance at Dec. 31, 2022	1,383,176	$ 530	1,222,761	303,146	(143,261)
Balance (in shares) at Dec. 31, 2022		52,954,985
Net income	130,497			130,497
Other comprehensive (loss) income	25,174				25,174
Cash dividends declared	(27,698)			(27,698)
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP (in shares)		336,094
Common stock issued in connection with the exercise of stock options, restricted stock awards and the ESPP	(76)	$ 3	(79)
Stock based compensation expense	9,945		9,945
Balance at Dec. 31, 2023	$ 1,521,018	$ 533	$ 1,232,627	$ 405,945	$ (118,087)
Balance (in shares) at Dec. 31, 2023		53,291,079