XML 64 R51.htm IDEA: XBRL DOCUMENT v3.24.1.u1

Loans - Loan Portfolio by Risk-Rating Grades (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Loan portfolio by risk-rating grades
Loans, net of unearned income	$ 12,500,525	$ 12,351,230	$ 11,766,425
Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	411,489	1,529,045
Prior year	1,469,567	2,668,916
Two years prior	2,723,177	1,695,615
Three years prior	1,598,952	887,626
Four years prior	858,822	506,670
Prior	1,201,304	796,168
Revolving Loans	1,084,100	1,092,033
Revolving Loans Converted to Term	50,637	47,526
Loans, net of unearned income	9,398,048	9,223,599
Pass
Loan portfolio by risk-rating grades
Current year	403,652	1,486,700
Prior year	1,442,546	2,646,886
Two years prior	2,678,067	1,675,390
Three years prior	1,574,880	876,426
Four years prior	848,249	462,272
Prior	1,116,509	743,331
Revolving Loans	1,002,330	1,075,744
Revolving Loans Converted to Term	40,613	37,771
Loans, net of unearned income	9,106,846	9,004,520
Special Mention
Loan portfolio by risk-rating grades
Current year	215	34,460
Prior year	19,426	7,924
Two years prior	17,529	15,614
Three years prior	20,196	6,334
Four years prior	6,073	17,962
Prior	29,873	16,403
Revolving Loans	45,051	939
Revolving Loans Converted to Term	1	63
Loans, net of unearned income	138,364	99,699
Substandard
Loan portfolio by risk-rating grades
Current year	7,622	7,885
Prior year	7,595	14,106
Two years prior	27,581	4,611
Three years prior	3,876	4,866
Four years prior	4,500	26,436
Prior	54,922	36,434
Revolving Loans	36,719	15,350
Revolving Loans Converted to Term	10,023	9,692
Loans, net of unearned income	152,838	119,380
Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	25,162	426,323
Prior year	424,796	792,154
Two years prior	779,398	560,877
Three years prior	546,574	316,732
Four years prior	309,556	144,540
Prior	502,079	373,249
Revolving Loans	505,035	507,774
Revolving Loans Converted to Term	9,877	5,982
Loans, net of unearned income	3,102,477	3,127,631
Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	25,162	425,809
Prior year	423,232	784,536
Two years prior	769,773	554,593
Three years prior	539,593	307,592
Four years prior	299,102	139,934
Prior	479,953	356,741
Revolving Loans	504,724	506,108
Revolving Loans Converted to Term	7,274	4,805
Loans, net of unearned income	3,048,813	3,080,118
Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	514
Prior year	1,564	7,618
Two years prior	9,625	6,284
Three years prior	6,981	9,140
Four years prior	10,454	4,606
Prior	22,126	16,508
Revolving Loans	311	1,666
Revolving Loans Converted to Term	2,603	1,177
Loans, net of unearned income	53,664	47,513
Commercial | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0
Prior year	0
Two years prior	0
Three years prior	0
Four years prior	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Loans, net of unearned income	0
Commercial | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0
Prior year	0
Two years prior	0
Three years prior	0
Four years prior	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Loans, net of unearned income	0
Commercial | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0
Prior year	0
Two years prior	0
Three years prior	0
Four years prior	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Loans, net of unearned income	0
Commercial, financial, agricultural
Loan portfolio by risk-rating grades
Loans, net of unearned income	1,869,408		1,740,778
Commercial, financial, agricultural | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	77,044	312,902
Prior year	290,663	289,264
Two years prior	270,335	162,535
Three years prior	156,083	98,894
Four years prior	94,343	51,162
Prior	82,457	38,518
Revolving Loans	873,299	883,302
Revolving Loans Converted to Term	4,834	19,440
Loans, net of unearned income	1,849,058	1,856,017
Commercial, financial, agricultural | Pass
Loan portfolio by risk-rating grades
Current year	69,435	311,312
Prior year	289,225	288,249
Two years prior	255,011	161,902
Three years prior	155,263	97,771
Four years prior	93,524	50,936
Prior	77,012	32,169
Revolving Loans	796,122	870,792
Revolving Loans Converted to Term	3,761	19,338
Loans, net of unearned income	1,739,353	1,832,469
Commercial, financial, agricultural | Special Mention
Loan portfolio by risk-rating grades
Current year	44	893
Prior year	814	364
Two years prior	222	10
Three years prior	299	294
Four years prior	172	0
Prior	473	291
Revolving Loans	44,848	914
Revolving Loans Converted to Term	1	63
Loans, net of unearned income	46,873	2,829
Commercial, financial, agricultural | Substandard
Loan portfolio by risk-rating grades
Current year	7,565	697
Prior year	624	651
Two years prior	15,102	623
Three years prior	521	829
Four years prior	647	226
Prior	4,972	6,058
Revolving Loans	32,329	11,596
Revolving Loans Converted to Term	1,072	39
Loans, net of unearned income	62,832	20,719
Commercial, financial, agricultural | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	20,350	15,804
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	20,350	15,804
Commercial, financial, agricultural | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	20,350	15,804
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	20,350	15,804
Commercial, financial, agricultural | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Lease Financing Receivables
Loan portfolio by risk-rating grades
Loans, net of unearned income	107,474		121,146
Lease Financing Receivables | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	5,619	32,842
Prior year	30,940	49,628
Two years prior	46,897	12,317
Three years prior	11,487	13,553
Four years prior	5,441	5,969
Prior	6,380	1,700
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	106,764	116,009
Lease Financing Receivables | Pass
Loan portfolio by risk-rating grades
Current year	5,619	32,842
Prior year	29,491	47,050
Two years prior	42,561	12,317
Three years prior	11,211	11,735
Four years prior	3,791	5,443
Prior	5,928	1,395
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	98,601	110,782
Lease Financing Receivables | Special Mention
Loan portfolio by risk-rating grades
Current year	0
Prior year	1,449
Two years prior	3,898
Three years prior	276
Four years prior	1,650
Prior	452
Revolving Loans	0
Revolving Loans Converted to Term	0
Loans, net of unearned income	7,725
Lease Financing Receivables | Watch
Loan portfolio by risk-rating grades
Current year		0
Prior year		2,578
Two years prior		0
Three years prior		1,818
Four years prior		526
Prior		305
Revolving Loans		0
Revolving Loans Converted to Term		0
Loans, net of unearned income		5,227
Lease Financing Receivables | Substandard
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	438	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	438	0
Lease Financing Receivables | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	710	11
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	710	11
Lease Financing Receivables | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	710	11
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	710	11
Lease Financing Receivables | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Real estate – construction:
Loan portfolio by risk-rating grades
Loans, net of unearned income	1,243,535		1,424,352
Real estate – construction: | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	78,762	320,889
Prior year	296,194	581,201
Two years prior	549,456	308,442
Three years prior	224,073	16,066
Four years prior	0	0
Prior	364	1,823
Revolving Loans	1,063	1,225
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	1,149,912	1,229,646
Real estate – construction: | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	2,232	48,003
Prior year	51,330	41,070
Two years prior	29,288	14,158
Three years prior	9,902	0
Four years prior	0	0
Prior	0	0
Revolving Loans	865	490
Revolving Loans Converted to Term	6	30
Loans, net of unearned income	93,623	103,751
Real estate – construction: | Residential | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	47,902	149,399
Prior year	118,273	12,883
Two years prior	10,741	1,989
Three years prior	0	0
Four years prior	0	0
Prior	364	369
Revolving Loans	1,063	1,225
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	178,343	165,865
Real estate – construction: | Residential | Pass
Loan portfolio by risk-rating grades
Current year	47,734	146,535
Prior year	115,241	10,147
Two years prior	9,072	1,989
Three years prior	0	0
Four years prior	0	0
Prior	364	369
Revolving Loans	1,063	1,225
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	173,474	160,265
Real estate – construction: | Residential | Special Mention
Loan portfolio by risk-rating grades
Current year	168	2,415
Prior year	2,750	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	2,918	2,415
Real estate – construction: | Residential | Substandard
Loan portfolio by risk-rating grades
Current year	0	449
Prior year	282	2,736
Two years prior	1,669	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	1,951	3,185
Real estate – construction: | Residential | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	2,232	48,003
Prior year	51,330	41,070
Two years prior	29,288	14,158
Three years prior	9,902	0
Four years prior	0	0
Prior	0	0
Revolving Loans	865	490
Revolving Loans Converted to Term	6	30
Loans, net of unearned income	93,623	103,751
Real estate – construction: | Residential | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	2,232	48,003
Prior year	51,330	41,070
Two years prior	29,288	14,158
Three years prior	9,902	0
Four years prior	0	0
Prior	0	0
Revolving Loans	865	490
Revolving Loans Converted to Term	6	30
Loans, net of unearned income	93,623	103,751
Real estate – construction: | Residential | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Real estate – construction: | Commercial | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	30,860	171,490
Prior year	177,921	568,318
Two years prior	538,715	306,453
Three years prior	224,073	16,066
Four years prior	0	0
Prior	0	1,454
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	971,569	1,063,781
Real estate – construction: | Commercial | Pass
Loan portfolio by risk-rating grades
Current year	30,860	142,917
Prior year	165,618	568,318
Two years prior	538,715	306,453
Three years prior	224,073	16,066
Four years prior	0	0
Prior	0	1,454
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	959,266	1,035,208
Real estate – construction: | Commercial | Special Mention
Loan portfolio by risk-rating grades
Current year	0	28,573
Prior year	12,303	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	12,303	28,573
Real estate – construction: | Commercial | Substandard
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Real estate – construction: | Commercial | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year		0
Prior year		0
Two years prior		0
Three years prior		0
Four years prior		0
Prior		0
Revolving Loans		0
Revolving Loans Converted to Term		0
Loans, net of unearned income		0
Real estate – construction: | Commercial | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year		0
Prior year		0
Two years prior		0
Three years prior		0
Four years prior		0
Prior		0
Revolving Loans		0
Revolving Loans Converted to Term		0
Loans, net of unearned income		0
Real estate – construction: | Commercial | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year		0
Prior year		0
Two years prior		0
Three years prior		0
Four years prior		0
Prior		0
Revolving Loans		0
Revolving Loans Converted to Term		0
Loans, net of unearned income		0
Real estate – 1-4 family mortgage:
Loan portfolio by risk-rating grades
Loans, net of unearned income	3,429,286		3,278,980
Real estate – 1-4 family mortgage: | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	37,476	145,568
Prior year	140,317	176,724
Two years prior	163,320	100,757
Three years prior	92,100	41,542
Four years prior	39,290	19,753
Prior	45,732	30,783
Revolving Loans	30,963	30,889
Revolving Loans Converted to Term	1,999	1,834
Loans, net of unearned income	551,197	547,850
Real estate – 1-4 family mortgage: | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	12,152	339,406
Prior year	342,732	731,088
Two years prior	733,486	536,544
Three years prior	527,566	312,015
Four years prior	305,436	133,852
Prior	456,357	339,842
Revolving Loans	490,616	493,515
Revolving Loans Converted to Term	9,744	5,807
Loans, net of unearned income	2,878,089	2,892,069
Real estate – 1-4 family mortgage: | Primary | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	1,136	8,512
Prior year	7,431	8,729
Two years prior	8,127	6,194
Three years prior	6,158	3,943
Four years prior	3,420	1,792
Prior	9,860	8,573
Revolving Loans	1,901	3,272
Revolving Loans Converted to Term	886	915
Loans, net of unearned income	38,919	41,930
Real estate – 1-4 family mortgage: | Primary | Pass
Loan portfolio by risk-rating grades
Current year	1,136	8,134
Prior year	7,239	8,511
Two years prior	7,940	5,859
Three years prior	5,714	3,943
Four years prior	3,420	1,781
Prior	9,535	8,140
Revolving Loans	1,901	3,272
Revolving Loans Converted to Term	886	915
Loans, net of unearned income	37,771	40,555
Real estate – 1-4 family mortgage: | Primary | Special Mention
Loan portfolio by risk-rating grades
Current year	0	183
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	28	34
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	28	217
Real estate – 1-4 family mortgage: | Primary | Substandard
Loan portfolio by risk-rating grades
Current year	0	195
Prior year	192	218
Two years prior	187	335
Three years prior	444	0
Four years prior	0	11
Prior	297	399
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	1,120	1,158
Real estate – 1-4 family mortgage: | Primary | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	11,116	334,103
Prior year	338,124	727,993
Two years prior	730,573	534,667
Three years prior	525,749	311,199
Four years prior	304,650	133,433
Prior	455,349	339,111
Revolving Loans	0	0
Revolving Loans Converted to Term	41	46
Loans, net of unearned income	2,365,602	2,380,552
Real estate – 1-4 family mortgage: | Primary | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	11,116	333,751
Prior year	336,745	720,759
Two years prior	721,389	528,383
Three years prior	518,782	302,065
Four years prior	294,198	128,859
Prior	433,351	322,677
Revolving Loans	0	0
Revolving Loans Converted to Term	41	46
Loans, net of unearned income	2,315,622	2,336,540
Real estate – 1-4 family mortgage: | Primary | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	352
Prior year	1,379	7,234
Two years prior	9,184	6,284
Three years prior	6,967	9,134
Four years prior	10,452	4,574
Prior	21,998	16,434
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	49,980	44,012
Real estate – 1-4 family mortgage: | Home equity | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	1,107
Prior year	1,028	10
Two years prior	10	996
Three years prior	981	0
Four years prior	0	0
Prior	0	16
Revolving Loans	22,387	20,628
Revolving Loans Converted to Term	58	74
Loans, net of unearned income	24,464	22,831
Real estate – 1-4 family mortgage: | Home equity | Pass
Loan portfolio by risk-rating grades
Current year	0	1,107
Prior year	1,028	10
Two years prior	10	996
Three years prior	981	0
Four years prior	0	0
Prior	0	1
Revolving Loans	22,184	20,628
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	24,203	22,742
Real estate – 1-4 family mortgage: | Home equity | Special Mention
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	203	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	203	0
Real estate – 1-4 family mortgage: | Home equity | Substandard
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	15
Revolving Loans	0	0
Revolving Loans Converted to Term	58	74
Loans, net of unearned income	58	89
Real estate – 1-4 family mortgage: | Home equity | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	111
Three years prior	111	0
Four years prior	0	0
Prior	452	470
Revolving Loans	490,616	493,515
Revolving Loans Converted to Term	9,703	5,761
Loans, net of unearned income	500,882	499,857
Real estate – 1-4 family mortgage: | Home equity | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	111
Three years prior	111	0
Four years prior	0	0
Prior	446	466
Revolving Loans	490,306	491,849
Revolving Loans Converted to Term	7,111	4,584
Loans, net of unearned income	497,974	497,010
Real estate – 1-4 family mortgage: | Home equity | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	6	4
Revolving Loans	310	1,666
Revolving Loans Converted to Term	2,592	1,177
Loans, net of unearned income	2,908	2,847
Real estate – 1-4 family mortgage: | Rental/investment | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	20,318	89,760
Prior year	95,046	129,241
Two years prior	126,021	75,457
Three years prior	72,768	37,171
Four years prior	35,505	17,817
Prior	32,292	18,721
Revolving Loans	4,489	4,678
Revolving Loans Converted to Term	1,055	845
Loans, net of unearned income	387,494	373,690
Real estate – 1-4 family mortgage: | Rental/investment | Pass
Loan portfolio by risk-rating grades
Current year	20,261	89,135
Prior year	94,436	128,939
Two years prior	125,868	74,330
Three years prior	72,157	35,388
Four years prior	33,685	16,670
Prior	31,500	18,109
Revolving Loans	4,489	4,678
Revolving Loans Converted to Term	806	583
Loans, net of unearned income	383,202	367,832
Real estate – 1-4 family mortgage: | Rental/investment | Special Mention
Loan portfolio by risk-rating grades
Current year	0	63
Prior year	61	47
Two years prior	46	256
Three years prior	197	4
Four years prior	43	50
Prior	49	42
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	396	462
Real estate – 1-4 family mortgage: | Rental/investment | Substandard
Loan portfolio by risk-rating grades
Current year	57	562
Prior year	549	255
Two years prior	107	871
Three years prior	414	1,779
Four years prior	1,777	1,097
Prior	743	570
Revolving Loans	0	0
Revolving Loans Converted to Term	249	262
Loans, net of unearned income	3,896	5,396
Real estate – 1-4 family mortgage: | Rental/investment | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	62	65
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	62	65
Real estate – 1-4 family mortgage: | Rental/investment | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	62	65
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	62	65
Real estate – 1-4 family mortgage: | Rental/investment | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Real estate – 1-4 family mortgage: | Land development | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	16,022	46,189
Prior year	36,812	38,744
Two years prior	29,162	18,110
Three years prior	12,193	428
Four years prior	365	144
Prior	3,580	3,473
Revolving Loans	2,186	2,311
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	100,320	109,399
Real estate – 1-4 family mortgage: | Land development | Pass
Loan portfolio by risk-rating grades
Current year	16,022	46,151
Prior year	36,775	38,744
Two years prior	29,162	18,110
Three years prior	12,193	409
Four years prior	365	144
Prior	3,479	3,372
Revolving Loans	2,186	2,311
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	100,182	109,241
Real estate – 1-4 family mortgage: | Land development | Special Mention
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	101	101
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	101	101
Real estate – 1-4 family mortgage: | Land development | Substandard
Loan portfolio by risk-rating grades
Current year	0	38
Prior year	37	0
Two years prior	0	0
Three years prior	0	19
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	37	57
Real estate – 1-4 family mortgage: | Land development | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	1,036	5,303
Prior year	4,608	3,095
Two years prior	2,913	1,766
Three years prior	1,706	816
Four years prior	786	419
Prior	494	196
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	11,543	11,595
Real estate – 1-4 family mortgage: | Land development | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	1,036	5,303
Prior year	4,608	3,095
Two years prior	2,736	1,766
Three years prior	1,706	816
Four years prior	786	419
Prior	494	196
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	11,366	11,595
Real estate – 1-4 family mortgage: | Land development | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	177	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	177	0
Real Estate - Commercial Mortgage
Loan portfolio by risk-rating grades
Loans, net of unearned income	5,753,230		5,085,813
Real Estate - Commercial Mortgage | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	212,539	716,844
Prior year	711,453	1,572,099
Two years prior	1,693,169	1,111,564
Three years prior	1,115,209	717,571
Four years prior	719,748	429,783
Prior	1,066,371	723,344
Revolving Loans	178,775	176,617
Revolving Loans Converted to Term	43,804	26,252
Loans, net of unearned income	5,741,068	5,474,074
Real Estate - Commercial Mortgage | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	557	3,640
Prior year	3,562	2,674
Two years prior	2,393	3,054
Three years prior	2,882	1,890
Four years prior	1,782	902
Prior	986	316
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	12,162	12,476
Real Estate - Commercial Mortgage | Land development | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	13,243	19,486
Prior year	16,451	40,108
Two years prior	32,877	13,809
Three years prior	11,734	3,916
Four years prior	3,803	4,497
Prior	8,459	5,286
Revolving Loans	4,680	4,808
Revolving Loans Converted to Term	182	184
Loans, net of unearned income	91,429	92,094
Real Estate - Commercial Mortgage | Land development | Pass
Loan portfolio by risk-rating grades
Current year	13,243	18,996
Prior year	16,010	36,479
Two years prior	29,184	13,567
Three years prior	11,512	3,775
Four years prior	3,665	4,479
Prior	8,239	5,046
Revolving Loans	4,656	4,776
Revolving Loans Converted to Term	182	184
Loans, net of unearned income	86,691	87,302
Real Estate - Commercial Mortgage | Land development | Special Mention
Loan portfolio by risk-rating grades
Current year	0	432
Prior year	417	3,334
Two years prior	3,316	36
Three years prior	35	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	3,768	3,802
Real Estate - Commercial Mortgage | Land development | Substandard
Loan portfolio by risk-rating grades
Current year	0	58
Prior year	24	295
Two years prior	377	206
Three years prior	187	141
Four years prior	138	18
Prior	220	240
Revolving Loans	24	32
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	970	990
Real Estate - Commercial Mortgage | Land development | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	557	3,640
Prior year	3,562	2,674
Two years prior	2,393	3,054
Three years prior	2,882	1,739
Four years prior	1,633	902
Prior	982	312
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	12,009	12,321
Real Estate - Commercial Mortgage | Land development | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	557	3,640
Prior year	3,562	2,383
Two years prior	2,200	3,054
Three years prior	2,882	1,736
Four years prior	1,631	902
Prior	982	312
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	11,814	12,027
Real Estate - Commercial Mortgage | Land development | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	291
Two years prior	193	0
Three years prior	0	3
Four years prior	2	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	195	294
Real Estate - Commercial Mortgage | Owner-occupied | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	58,853	264,589
Prior year	261,181	336,491
Two years prior	366,383	321,491
Three years prior	309,977	214,365
Four years prior	210,035	164,931
Prior	414,837	283,517
Revolving Loans	54,321	60,200
Revolving Loans Converted to Term	3,195	3,247
Loans, net of unearned income	1,678,782	1,648,831
Real Estate - Commercial Mortgage | Owner-occupied | Pass
Loan portfolio by risk-rating grades
Current year	58,853	260,831
Prior year	257,650	325,575
Two years prior	349,540	318,391
Three years prior	307,144	212,368
Four years prior	208,132	159,552
Prior	403,233	275,088
Revolving Loans	49,955	56,453
Revolving Loans Converted to Term	2,925	2,977
Loans, net of unearned income	1,637,432	1,611,235
Real Estate - Commercial Mortgage | Owner-occupied | Special Mention
Loan portfolio by risk-rating grades
Current year	0	562
Prior year	306	1,147
Two years prior	7,324	890
Three years prior	880	107
Four years prior	140	3,385
Prior	6,572	2,953
Revolving Loans	0	25
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	15,222	9,069
Real Estate - Commercial Mortgage | Owner-occupied | Substandard
Loan portfolio by risk-rating grades
Current year	0	3,196
Prior year	3,225	9,769
Two years prior	9,519	2,210
Three years prior	1,953	1,890
Four years prior	1,763	1,994
Prior	5,032	5,476
Revolving Loans	4,366	3,722
Revolving Loans Converted to Term	270	270
Loans, net of unearned income	26,128	28,527
Real Estate - Commercial Mortgage | Owner-occupied | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	126
Four years prior	125	0
Prior	4	4
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	129	130
Real Estate - Commercial Mortgage | Owner-occupied | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	126
Four years prior	125	0
Prior	4	4
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	129	130
Real Estate - Commercial Mortgage | Owner-occupied | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Real Estate - Commercial Mortgage | Non-owner occupied | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	140,443	432,769
Prior year	433,821	1,195,500
Two years prior	1,293,909	776,264
Three years prior	793,498	499,290
Four years prior	505,910	260,355
Prior	643,075	434,541
Revolving Loans	119,774	111,609
Revolving Loans Converted to Term	40,427	22,821
Loans, net of unearned income	3,970,857	3,733,149
Real Estate - Commercial Mortgage | Non-owner occupied | Pass
Loan portfolio by risk-rating grades
Current year	140,440	428,740
Prior year	429,833	1,194,864
Two years prior	1,291,004	761,476
Three years prior	774,632	494,971
Four years prior	501,667	223,264
Prior	577,219	398,188
Revolving Loans	119,774	111,609
Revolving Loans Converted to Term	32,053	13,774
Loans, net of unearned income	3,866,622	3,626,886
Real Estate - Commercial Mortgage | Non-owner occupied | Special Mention
Loan portfolio by risk-rating grades
Current year	3	1,339
Prior year	1,326	454
Two years prior	2,723	14,422
Three years prior	18,509	4,111
Four years prior	4,068	14,001
Prior	22,198	12,677
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	48,827	47,004
Real Estate - Commercial Mortgage | Non-owner occupied | Substandard
Loan portfolio by risk-rating grades
Current year	0	2,690
Prior year	2,662	182
Two years prior	182	366
Three years prior	357	208
Four years prior	175	23,090
Prior	43,658	23,676
Revolving Loans	0	0
Revolving Loans Converted to Term	8,374	9,047
Loans, net of unearned income	55,408	59,259
Real Estate - Commercial Mortgage | Non-owner occupied | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	25
Four years prior	24	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	24	25
Real Estate - Commercial Mortgage | Non-owner occupied | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	25
Four years prior	24	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	24	25
Real Estate - Commercial Mortgage | Non-owner occupied | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Installment loans to individuals
Loan portfolio by risk-rating grades
Loans, net of unearned income	97,592		$ 115,356
Installment loans to individuals | Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	49	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	3
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	49	3
Installment loans to individuals | Pass
Loan portfolio by risk-rating grades
Current year	49	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	3
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	49	3
Installment loans to individuals | Special Mention
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Installment loans to individuals | Substandard
Loan portfolio by risk-rating grades
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Loans, net of unearned income	0	0
Installment loans to individuals | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	10,221	35,274
Prior year	27,172	17,322
Two years prior	14,231	7,121
Three years prior	6,224	2,827
Four years prior	2,338	9,786
Prior	23,676	17,276
Revolving Loans	13,554	13,769
Revolving Loans Converted to Term	127	145
Loans, net of unearned income	97,543	103,520
Installment loans to individuals | Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	10,221	35,112
Prior year	26,987	17,229
Two years prior	14,160	7,121
Three years prior	6,210	2,824
Four years prior	2,338	9,754
Prior	23,554	17,206
Revolving Loans	13,553	13,769
Revolving Loans Converted to Term	116	145
Loans, net of unearned income	97,139	103,160
Installment loans to individuals | Non-Performing Loans | Not Subject to Credit Risk Assessment
Loan portfolio by risk-rating grades
Current year	0	162
Prior year	185	93
Two years prior	71	0
Three years prior	14	3
Four years prior	0	32
Prior	122	70
Revolving Loans	1	0
Revolving Loans Converted to Term	11	0
Loans, net of unearned income	$ 404	$ 360

X

- Definition

Loan portfolio by risk rating grades.

+ References

No definition available.

+ Details

Name:	rnst_LoanPortfolioByRiskRatingGradesAbstract
Namespace Prefix:	rnst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=rnst_SubjecttoCreditRiskAssessmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=rnst_NotSubjecttoCreditRiskAssessmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_LeaseFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=rnst_WatchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_RealEstateOneToFourFamilyMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=rnst_PrimaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=rnst_RentalInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=rnst_CommercialLandDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_CommercialResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=rnst_OwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ParticipatingMortgageLoansAxis=rnst_NonownerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rnst_InstallmentLoansToIndividualsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: