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Loans - Aging analysis of past due loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loans and Allowance for Loan Losses
Non-Accruing	$ 104,225	$ 75,418
Total loans	30,177,862	23,928,166
30 days past due
Loans and Allowance for Loan Losses
Total loans	68,416	68,136
60 days past due
Loans and Allowance for Loan Losses
Total loans	31,607	33,250
90 days past due
Loans and Allowance for Loan Losses
Total loans	4,350	4,863
Total Past Due
Loans and Allowance for Loan Losses
Total loans	104,373	106,249
Current
Loans and Allowance for Loan Losses
Total loans	29,969,264	23,746,499
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	22,805,039	16,050,775
Construction and land development
Loans and Allowance for Loan Losses
Non-Accruing	827	1,567
Total loans	2,860,360	2,029,216
Construction and land development | 30 days past due
Loans and Allowance for Loan Losses
Total loans	2,146	1,176
Construction and land development | 60 days past due
Loans and Allowance for Loan Losses
Total loans	3,653	59
Construction and land development | 90 days past due
Loans and Allowance for Loan Losses
Total loans		43
Construction and land development | Total Past Due
Loans and Allowance for Loan Losses
Total loans	5,799	1,278
Construction and land development | Current
Loans and Allowance for Loan Losses
Total loans	2,853,734	2,026,371
Commercial non-owner occupied
Loans and Allowance for Loan Losses
Non-Accruing	20,425	19,909
Total loans	8,072,959	6,735,699
Commercial non-owner occupied | 30 days past due
Loans and Allowance for Loan Losses
Total loans	1,158	3,591
Commercial non-owner occupied | 60 days past due
Loans and Allowance for Loan Losses
Total loans	978	2,110
Commercial non-owner occupied | 90 days past due
Loans and Allowance for Loan Losses
Total loans	77	96
Commercial non-owner occupied | Total Past Due
Loans and Allowance for Loan Losses
Total loans	2,213	5,797
Commercial non-owner occupied | Current
Loans and Allowance for Loan Losses
Total loans	8,050,321	6,709,993
Commercial owner occupied real estate loan
Loans and Allowance for Loan Losses
Non-Accruing	35,089	14,532
Total loans	5,460,193	4,970,116
Commercial owner occupied real estate loan | 30 days past due
Loans and Allowance for Loan Losses
Total loans	10,748	2,756
Commercial owner occupied real estate loan | 60 days past due
Loans and Allowance for Loan Losses
Total loans	2,059	1,732
Commercial owner occupied real estate loan | 90 days past due
Loans and Allowance for Loan Losses
Total loans	2,231	626
Commercial owner occupied real estate loan | Total Past Due
Loans and Allowance for Loan Losses
Total loans	15,038	5,114
Commercial owner occupied real estate loan | Current
Loans and Allowance for Loan Losses
Total loans	5,410,066	4,950,470
Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Non-Accruing	17,307	18,183
Total loans	5,162,042	3,638,364
Consumer Owner Occupied Loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	6,001	4,046
Consumer Owner Occupied Loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	744	533
Consumer Owner Occupied Loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans	40
Consumer Owner Occupied Loans | Total Past Due
Loans and Allowance for Loan Losses
Total loans	6,785	4,579
Consumer Owner Occupied Loans | Current
Loans and Allowance for Loan Losses
Total loans	5,137,950	3,615,602
Home equity loans
Loans and Allowance for Loan Losses
Non-Accruing	6,316	6,255
Total loans	1,313,168	1,168,594
Home equity loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	2,527	2,565
Home equity loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	361	913
Home equity loans | Total Past Due
Loans and Allowance for Loan Losses
Total loans	2,888	3,478
Home equity loans | Current
Loans and Allowance for Loan Losses
Total loans	1,303,964	1,158,861
Commercial and industrial
Loans and Allowance for Loan Losses
Non-Accruing	17,129	7,441
Total loans	5,313,483	3,761,133
Commercial and industrial | 30 days past due
Loans and Allowance for Loan Losses
Total loans	24,500	50,451
Commercial and industrial | 60 days past due
Loans and Allowance for Loan Losses
Total loans	11,677	26,639
Commercial and industrial | 90 days past due
Loans and Allowance for Loan Losses
Total loans	1,704	3,991
Commercial and industrial | Total Past Due
Loans and Allowance for Loan Losses
Total loans	37,881	81,081
Commercial and industrial | Current
Loans and Allowance for Loan Losses
Total loans	5,258,473	3,672,611
Other income producing property
Loans and Allowance for Loan Losses
Non-Accruing	2,734	4,075
Total loans	696,242	696,804
Other income producing property | 30 days past due
Loans and Allowance for Loan Losses
Total loans	1,623	879
Other income producing property | 60 days past due
Loans and Allowance for Loan Losses
Total loans	1,480	424
Other income producing property | 90 days past due
Loans and Allowance for Loan Losses
Total loans	298	106
Other income producing property | Total Past Due
Loans and Allowance for Loan Losses
Total loans	3,401	1,409
Other income producing property | Current
Loans and Allowance for Loan Losses
Total loans	690,107	691,320
Consumer loans
Loans and Allowance for Loan Losses
Non-Accruing	4,398	3,456
Total loans	1,278,426	904,657
Consumer loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	19,713	2,672
Consumer loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	10,655	840
Consumer loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans		1
Consumer loans | Total Past Due
Loans and Allowance for Loan Losses
Total loans	30,368	3,513
Consumer loans | Current
Loans and Allowance for Loan Losses
Total loans	1,243,660	897,688
Other loans
Loans and Allowance for Loan Losses
Total loans	20,989	23,583
Other loans | Current
Loans and Allowance for Loan Losses
Total loans	20,989	23,583
Commercial loans
Loans and Allowance for Loan Losses
Total loans	21,430,337	17,476,982
Commercial loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	1,956,300	1,342,755
Commercial loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total loans	8,072,959	6,735,699
Commercial loans | Commercial owner occupied real estate loan
Loans and Allowance for Loan Losses
Total loans	5,460,193	4,970,116
Commercial loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	30,741	30,043
Commercial loans | Commercial and industrial
Loans and Allowance for Loan Losses
Total loans	5,313,483	3,761,133
Commercial loans | Other income producing property
Loans and Allowance for Loan Losses
Total loans	575,672	613,653
Commercial loans | Other loans
Loans and Allowance for Loan Losses
Total loans	20,989	23,583
Consumer portfolio loans
Loans and Allowance for Loan Losses
Total loans	8,747,525	6,451,184
Consumer portfolio loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	30,013	10,878
Consumer portfolio loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	14,615	4,157
Consumer portfolio loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans	10,472	11,532
Consumer portfolio loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	904,060	686,461
Consumer portfolio loans | Construction and land development | 30 days past due
Loans and Allowance for Loan Losses
Total loans	125	24
Consumer portfolio loans | Construction and land development | 60 days past due
Loans and Allowance for Loan Losses
Total loans		12
Consumer portfolio loans | Construction and land development | 90 days past due
Loans and Allowance for Loan Losses
Total loans	477	104
Consumer portfolio loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	5,131,301	3,608,321
Consumer portfolio loans | Consumer Owner Occupied Loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	7,215	5,024
Consumer portfolio loans | Consumer Owner Occupied Loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	3,063	1,841
Consumer portfolio loans | Consumer Owner Occupied Loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans	5,874	7,069
Consumer portfolio loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	1,313,168	1,168,594
Consumer portfolio loans | Home equity loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	2,658	2,909
Consumer portfolio loans | Home equity loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	691	942
Consumer portfolio loans | Home equity loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans	1,081	2,712
Consumer portfolio loans | Other income producing property
Loans and Allowance for Loan Losses
Total loans	120,570	83,151
Consumer portfolio loans | Other income producing property | 30 days past due
Loans and Allowance for Loan Losses
Total loans	62	90
Consumer portfolio loans | Other income producing property | 60 days past due
Loans and Allowance for Loan Losses
Total loans	23	156
Consumer portfolio loans | Other income producing property | 90 days past due
Loans and Allowance for Loan Losses
Total loans	121	14
Consumer portfolio loans | Consumer loans
Loans and Allowance for Loan Losses
Total loans	1,278,426	904,657
Consumer portfolio loans | Consumer loans | 30 days past due
Loans and Allowance for Loan Losses
Total loans	19,953	2,831
Consumer portfolio loans | Consumer loans | 60 days past due
Loans and Allowance for Loan Losses
Total loans	10,838	1,206
Consumer portfolio loans | Consumer loans | 90 days past due
Loans and Allowance for Loan Losses
Total loans	$ 2,919	$ 1,633

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