Merger with Pioneer Bancshares, Inc. - Supplemental Pro Forma Information (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) $ / shares
Business Combination and Asset Acquisition [Abstract]
Net interest income	$ 110,021
Provision for loan losses	7,850
Net interest income after provision for loan losses	102,171
Noninterest income	47,422
Noninterest expenses	118,316
Income before income taxes	31,277
Provision for income taxes	5,599
Net income	25,678
Earnings per share:
Net income available to common stockholders, basic	25,678
Net income available to common stockholders, diluted	$ 25,678
Basic (in dollars per share) | $ / shares	$ 0.84
Diluted (in dollars per share) | $ / shares	$ 0.86