Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest income:
Interest and fees on loans	$ 140,356	$ 86,864
Interest on securities
Taxable	6,570	5,420
Tax-exempt	1,804	1,866
Other	10,750	977
Total interest income	159,480	95,127
Interest expense:
Interest (expense) income on deposits	52,863	5,462
Interest (expense) income on borrowings	2,957	1,483
Total interest expense	55,820	6,945
Net interest income	103,660	88,182
Provision for credit losses	4,997	(6,129)
Provision for credit losses on unfunded commitments	(4,506)	1,882
Net interest income after provisions for credit losses	103,169	92,429
Noninterest income:
Gain (loss) from securities, net	69	(152)
Loss on sales or write-downs of other real estate owned and other assets	(183)	(434)
Other income	3,550	2,314
Total noninterest income	23,349	41,392
Noninterest expenses:
Salaries, commissions and employee benefits	48,788	59,443
Occupancy and equipment expense	5,909	5,403
Legal and professional fees	3,108	2,607
Data processing	2,113	2,481
Amortization of core deposit and other intangibles	990	1,244
Advertising	2,133	4,033
Other expense	17,399	14,061
Total noninterest expense	80,440	89,272
Income before income taxes	46,078	44,549
Income tax expense	9,697	9,313
Net income applicable to FB Financial Corporation and noncontrolling interest	36,381	35,236
Net income applicable to noncontrolling interest	0	0
Net income applicable to FB Financial Corporation	$ 36,381	$ 35,236
Earnings per common share
Basic (in dollars per share)	$ 0.78	$ 0.74
Diluted (in dollars per share)	$ 0.78	$ 0.74
Mortgage banking income
Noninterest income:
Mortgage banking income, service charges on deposit accounts, ATM and interchange fees, investment services and trust income	$ 12,086	$ 29,531
Service charges on deposit accounts
Noninterest income:
Mortgage banking income, service charges on deposit accounts, ATM and interchange fees, investment services and trust income	3,053	2,914
ATM and interchange fees
Noninterest income:
Mortgage banking income, service charges on deposit accounts, ATM and interchange fees, investment services and trust income	2,396	5,087
Investment services and trust income
Noninterest income:
Mortgage banking income, service charges on deposit accounts, ATM and interchange fees, investment services and trust income	$ 2,378	$ 2,132