XML 49 R38.htm IDEA: XBRL DOCUMENT v3.24.2.u1

Loans and Allowance for Loan Losses - Loan Portfolio Credit Exposure (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	$ 1,640,245		$ 1,640,245		$ 3,783,210
Term loans amortized cost basis by origination, before current fiscal year	3,835,509		3,835,509		6,965,524
Term loans amortized cost basis by origination, two years before current fiscal year	7,085,648		7,085,648		7,504,636
Term loans amortized cost basis by origination, three years before current fiscal year	7,071,527		7,071,527		4,404,254
Term loans amortized cost basis by origination, four years before current fiscal year	4,056,623		4,056,623		3,061,633
Term loans amortized cost basis by origination, prior	8,289,226		8,289,226		6,216,447
Amortized Cost Basis	10,585,089		10,585,089		10,932,133
Converted to Term Loans	529,530		529,530		536,653
Total loans	43,093,397		43,093,397		43,404,490
Gross charge-offs
Year One			1,498		10,540
Year Two			17,656		17,269
Year Three			5,536		38,758
Year Four			12,714		34,274
Year Five			3,555		6,975
Prior			14,381		30,674
Amortized Cost Basis			37,487		44,152
Converted to Term Loans			32		432
Total	42,291	$ 36,256	92,859	$ 61,591	183,074
Total consumer
Gross charge-offs
Total	7,649	13,410	16,563	30,776
Charge-off of previously established reserves for credit losses associated with the transfer to held for sale		$ 1,300		$ 7,900	31,300
Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	965,351		965,351		1,986,629
Term loans amortized cost basis by origination, before current fiscal year	2,082,160		2,082,160		2,619,103
Term loans amortized cost basis by origination, two years before current fiscal year	2,552,838		2,552,838		3,001,532
Term loans amortized cost basis by origination, three years before current fiscal year	2,788,372		2,788,372		1,841,896
Term loans amortized cost basis by origination, four years before current fiscal year	1,758,858		1,758,858		1,460,858
Term loans amortized cost basis by origination, prior	3,802,047		3,802,047		2,803,594
Amortized Cost Basis	8,519,385		8,519,385		8,836,288
Converted to Term Loans	67,601		67,601		48,593
Total loans	22,536,612		22,536,612		22,598,493
Gross charge-offs
Year One			1,479		9,367
Year Two			16,089		3,436
Year Three			2,861		8,608
Year Four			8,447		26,368
Year Five			2,253		2,709
Prior			8,900		4,933
Amortized Cost Basis			32,293		30,696
Converted to Term Loans			0		203
Total			72,322		86,320
Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	649,234		649,234		1,120,645
Term loans amortized cost basis by origination, before current fiscal year	1,127,686		1,127,686		1,063,760
Term loans amortized cost basis by origination, two years before current fiscal year	962,259		962,259		1,463,949
Term loans amortized cost basis by origination, three years before current fiscal year	1,367,381		1,367,381		821,205
Term loans amortized cost basis by origination, four years before current fiscal year	769,231		769,231		727,833
Term loans amortized cost basis by origination, prior	1,762,409		1,762,409		1,266,232
Amortized Cost Basis	7,813,807		7,813,807		7,947,128
Converted to Term Loans	67,601		67,601		48,593
Total loans	14,519,608		14,519,608		14,459,345
Gross charge-offs
Year One			1,479		9,367
Year Two			16,013		3,436
Year Three			2,861		8,175
Year Four			8,447		19,532
Year Five			715		1,165
Prior			2,597		2,071
Amortized Cost Basis			32,293		30,696
Converted to Term Loans			0		203
Total			64,405		74,645
Total commercial and industrial | Owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	316,117		316,117		865,984
Term loans amortized cost basis by origination, before current fiscal year	954,474		954,474		1,555,343
Term loans amortized cost basis by origination, two years before current fiscal year	1,590,579		1,590,579		1,537,583
Term loans amortized cost basis by origination, three years before current fiscal year	1,420,991		1,420,991		1,020,691
Term loans amortized cost basis by origination, four years before current fiscal year	989,627		989,627		733,025
Term loans amortized cost basis by origination, prior	2,039,638		2,039,638		1,537,362
Amortized Cost Basis	705,578		705,578		889,160
Converted to Term Loans	0		0		0
Total loans	8,017,004		8,017,004		8,139,148
Gross charge-offs
Year One			0		0
Year Two			76		0
Year Three			0		433
Year Four			0		6,836
Year Five			1,538		1,544
Prior			6,303		2,862
Amortized Cost Basis			0		0
Converted to Term Loans			0		0
Total			7,917		11,675
Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	353,325		353,325		902,990
Term loans amortized cost basis by origination, before current fiscal year	913,391		913,391		3,376,295
Term loans amortized cost basis by origination, two years before current fiscal year	3,656,411		3,656,411		3,229,919
Term loans amortized cost basis by origination, three years before current fiscal year	3,104,022		3,104,022		1,211,860
Term loans amortized cost basis by origination, four years before current fiscal year	1,020,076		1,020,076		1,151,962
Term loans amortized cost basis by origination, prior	2,902,091		2,902,091		2,138,962
Amortized Cost Basis	266,171		266,171		304,770
Converted to Term Loans	0		0		0
Total loans	12,215,487		12,215,487		12,316,758
Gross charge-offs
Year One			0		546
Year Two			103		7,685
Year Three			0		5,668
Year Four			0		3,878
Year Five			0		1,893
Prior			3,871		22,671
Amortized Cost Basis			0		3,109
Converted to Term Loans			0		0
Total			3,974		45,450
Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	233,071		233,071		595,623
Term loans amortized cost basis by origination, before current fiscal year	700,683		700,683		3,145,727
Term loans amortized cost basis by origination, two years before current fiscal year	3,479,101		3,479,101		3,074,155
Term loans amortized cost basis by origination, three years before current fiscal year	2,964,747		2,964,747		1,163,152
Term loans amortized cost basis by origination, four years before current fiscal year	979,856		979,856		1,102,689
Term loans amortized cost basis by origination, prior	2,763,995		2,763,995		2,020,221
Amortized Cost Basis	206,596		206,596		261,737
Converted to Term Loans	0		0		0
Total loans	11,328,049		11,328,049		11,363,304
Gross charge-offs
Year One			0		546
Year Two			0		7,685
Year Three			0		5,668
Year Four			0		3,801
Year Five			0		1,893
Prior			3,738		22,647
Amortized Cost Basis			0		3,109
Converted to Term Loans			0		0
Total			3,738		45,349
Total commercial real estate | 1-4 family properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	67,911		67,911		172,554
Term loans amortized cost basis by origination, before current fiscal year	116,559		116,559		144,699
Term loans amortized cost basis by origination, two years before current fiscal year	110,560		110,560		119,697
Term loans amortized cost basis by origination, three years before current fiscal year	110,547		110,547		32,577
Term loans amortized cost basis by origination, four years before current fiscal year	31,056		31,056		30,064
Term loans amortized cost basis by origination, prior	69,141		69,141		56,766
Amortized Cost Basis	46,773		46,773		42,145
Converted to Term Loans	0		0		0
Total loans	552,547		552,547		598,502
Gross charge-offs
Year One			0		0
Year Two			103		0
Year Three			0		0
Year Four			0		0
Year Five			0		0
Prior			133		24
Amortized Cost Basis			0		0
Converted to Term Loans			0		0
Total			236		24
Total commercial real estate | Land and development
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	52,343		52,343		134,813
Term loans amortized cost basis by origination, before current fiscal year	96,149		96,149		85,869
Term loans amortized cost basis by origination, two years before current fiscal year	66,750		66,750		36,067
Term loans amortized cost basis by origination, three years before current fiscal year	28,728		28,728		16,131
Term loans amortized cost basis by origination, four years before current fiscal year	9,164		9,164		19,209
Term loans amortized cost basis by origination, prior	68,955		68,955		61,975
Amortized Cost Basis	12,802		12,802		888
Converted to Term Loans	0		0		0
Total loans	334,891		334,891		354,952
Gross charge-offs
Year One			0		0
Year Two			0		0
Year Three			0		0
Year Four			0		77
Year Five			0		0
Prior			0		0
Amortized Cost Basis			0		0
Converted to Term Loans			0		0
Total			0		77
Total consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	321,569		321,569		893,591
Term loans amortized cost basis by origination, before current fiscal year	839,958		839,958		970,126
Term loans amortized cost basis by origination, two years before current fiscal year	876,399		876,399		1,273,185
Term loans amortized cost basis by origination, three years before current fiscal year	1,179,133		1,179,133		1,350,498
Term loans amortized cost basis by origination, four years before current fiscal year	1,277,689		1,277,689		448,813
Term loans amortized cost basis by origination, prior	1,585,088		1,585,088		1,273,891
Amortized Cost Basis	1,799,533		1,799,533		1,791,075
Converted to Term Loans	461,929		461,929		488,060
Total loans	8,341,298		8,341,298		8,489,239
Gross charge-offs
Year One			19		627
Year Two			1,464		6,148
Year Three			2,675		24,482
Year Four			4,267		4,028
Year Five			1,302		2,373
Prior			1,610		3,070
Amortized Cost Basis			5,194		10,347
Converted to Term Loans			32		229
Total			16,563		51,304
Total consumer | Consumer mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	246,426		246,426		758,049
Term loans amortized cost basis by origination, before current fiscal year	740,949		740,949		787,708
Term loans amortized cost basis by origination, two years before current fiscal year	728,652		728,652		1,049,959
Term loans amortized cost basis by origination, three years before current fiscal year	999,460		999,460		1,235,310
Term loans amortized cost basis by origination, four years before current fiscal year	1,182,245		1,182,245		419,989
Term loans amortized cost basis by origination, prior	1,472,840		1,472,840		1,160,673
Amortized Cost Basis	592		592		35
Converted to Term Loans	0		0		0
Total loans	5,371,164		5,371,164		5,411,723
Gross charge-offs
Year One			0		0
Year Two			0		108
Year Three			0		251
Year Four			0		403
Year Five			25		402
Prior			109		965
Amortized Cost Basis			0		5
Converted to Term Loans			0		0
Total			134		2,134
Total consumer | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	1,351,011		1,351,011		1,319,339
Converted to Term Loans	461,929		461,929		488,060
Total loans	1,812,940		1,812,940		1,807,399
Gross charge-offs
Year One			0		0
Year Two			0		0
Year Three			0		0
Year Four			0		0
Year Five			0		0
Prior			0		79
Amortized Cost Basis			0		819
Converted to Term Loans			32		229
Total			32		1,127
Total consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	178,889		178,889		194,141
Converted to Term Loans	0		0		0
Total loans	178,889		178,889		194,141
Gross charge-offs
Year One			0		0
Year Two			0		0
Year Three			0		0
Year Four			0		0
Year Five			0		0
Prior			0		0
Amortized Cost Basis			3,892		7,165
Converted to Term Loans			0		0
Total			3,892		7,165
Total consumer | Other consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	75,143		75,143		135,542
Term loans amortized cost basis by origination, before current fiscal year	99,009		99,009		182,418
Term loans amortized cost basis by origination, two years before current fiscal year	147,747		147,747		223,226
Term loans amortized cost basis by origination, three years before current fiscal year	179,673		179,673		115,188
Term loans amortized cost basis by origination, four years before current fiscal year	95,444		95,444		28,824
Term loans amortized cost basis by origination, prior	112,248		112,248		113,218
Amortized Cost Basis	269,041		269,041		277,560
Converted to Term Loans	0		0		0
Total loans	978,305		978,305		1,075,976
Gross charge-offs
Year One			19		627
Year Two			1,464		6,040
Year Three			2,675		24,231
Year Four			4,267		3,625
Year Five			1,277		1,971
Prior			1,501		2,026
Amortized Cost Basis			1,302		2,358
Converted to Term Loans			0		0
Total			12,505		40,878
Pass | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	626,567		626,567		1,078,790
Term loans amortized cost basis by origination, before current fiscal year	1,098,785		1,098,785		1,040,742
Term loans amortized cost basis by origination, two years before current fiscal year	911,677		911,677		1,408,178
Term loans amortized cost basis by origination, three years before current fiscal year	1,320,817		1,320,817		782,069
Term loans amortized cost basis by origination, four years before current fiscal year	730,590		730,590		636,341
Term loans amortized cost basis by origination, prior	1,728,030		1,728,030		1,236,433
Amortized Cost Basis	7,468,133		7,468,133		7,623,255
Converted to Term Loans	62,057		62,057		46,908
Total loans	13,946,656		13,946,656		13,852,716
Pass | Total commercial and industrial | Owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	314,814		314,814		859,887
Term loans amortized cost basis by origination, before current fiscal year	947,696		947,696		1,521,469
Term loans amortized cost basis by origination, two years before current fiscal year	1,545,933		1,545,933		1,501,405
Term loans amortized cost basis by origination, three years before current fiscal year	1,369,707		1,369,707		958,620
Term loans amortized cost basis by origination, four years before current fiscal year	906,405		906,405		710,634
Term loans amortized cost basis by origination, prior	1,909,641		1,909,641		1,401,416
Amortized Cost Basis	653,228		653,228		782,180
Converted to Term Loans	0		0		0
Total loans	7,647,424		7,647,424		7,735,611
Pass | Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	233,067		233,067		593,540
Term loans amortized cost basis by origination, before current fiscal year	697,423		697,423		3,140,041
Term loans amortized cost basis by origination, two years before current fiscal year	3,391,129		3,391,129		2,863,327
Term loans amortized cost basis by origination, three years before current fiscal year	2,691,967		2,691,967		1,161,697
Term loans amortized cost basis by origination, four years before current fiscal year	933,578		933,578		1,052,638
Term loans amortized cost basis by origination, prior	2,628,003		2,628,003		1,900,744
Amortized Cost Basis	206,596		206,596		261,737
Converted to Term Loans	0		0		0
Total loans	10,781,763		10,781,763		10,973,724
Pass | Total commercial real estate | 1-4 family properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	67,911		67,911		167,729
Term loans amortized cost basis by origination, before current fiscal year	115,810		115,810		142,930
Term loans amortized cost basis by origination, two years before current fiscal year	109,798		109,798		119,054
Term loans amortized cost basis by origination, three years before current fiscal year	109,112		109,112		31,928
Term loans amortized cost basis by origination, four years before current fiscal year	30,592		30,592		29,740
Term loans amortized cost basis by origination, prior	66,683		66,683		55,243
Amortized Cost Basis	46,728		46,728		42,099
Converted to Term Loans	0		0		0
Total loans	546,634		546,634		588,723
Pass | Total commercial real estate | Land and development
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	52,343		52,343		105,609
Term loans amortized cost basis by origination, before current fiscal year	95,588		95,588		84,962
Term loans amortized cost basis by origination, two years before current fiscal year	66,267		66,267		35,993
Term loans amortized cost basis by origination, three years before current fiscal year	28,699		28,699		16,131
Term loans amortized cost basis by origination, four years before current fiscal year	8,969		8,969		18,616
Term loans amortized cost basis by origination, prior	66,360		66,360		59,605
Amortized Cost Basis	12,802		12,802		888
Converted to Term Loans	0		0		0
Total loans	331,028		331,028		321,804
Pass | Total consumer | Consumer mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	246,139		246,139		757,485
Term loans amortized cost basis by origination, before current fiscal year	739,069		739,069		784,898
Term loans amortized cost basis by origination, two years before current fiscal year	725,131		725,131		1,044,442
Term loans amortized cost basis by origination, three years before current fiscal year	993,128		993,128		1,219,397
Term loans amortized cost basis by origination, four years before current fiscal year	1,164,849		1,164,849		410,511
Term loans amortized cost basis by origination, prior	1,438,748		1,438,748		1,136,541
Amortized Cost Basis	592		592		35
Converted to Term Loans	0		0		0
Total loans	5,307,656		5,307,656		5,353,309
Pass | Total consumer | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	1,338,972		1,338,972		1,308,934
Converted to Term Loans	455,684		455,684		482,679
Total loans	1,794,656		1,794,656		1,791,613
Pass | Total consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	177,086		177,086		192,217
Converted to Term Loans	0		0		0
Total loans	177,086		177,086		192,217
Pass | Total consumer | Other consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	75,143		75,143		134,969
Term loans amortized cost basis by origination, before current fiscal year	98,329		98,329		181,455
Term loans amortized cost basis by origination, two years before current fiscal year	146,434		146,434		219,415
Term loans amortized cost basis by origination, three years before current fiscal year	176,291		176,291		114,006
Term loans amortized cost basis by origination, four years before current fiscal year	94,170		94,170		28,256
Term loans amortized cost basis by origination, prior	111,612		111,612		112,724
Amortized Cost Basis	268,946		268,946		277,368
Converted to Term Loans	0		0		0
Total loans	970,925		970,925		1,068,193
Special Mention | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	333		333		5,298
Term loans amortized cost basis by origination, before current fiscal year	8,268		8,268		8,276
Term loans amortized cost basis by origination, two years before current fiscal year	5,942		5,942		20,027
Term loans amortized cost basis by origination, three years before current fiscal year	17,953		17,953		1,950
Term loans amortized cost basis by origination, four years before current fiscal year	858		858		2,552
Term loans amortized cost basis by origination, prior	10,710		10,710		8,412
Amortized Cost Basis	143,327		143,327		141,580
Converted to Term Loans	1,807		1,807		0
Total loans	189,198		189,198		188,095
Special Mention | Total commercial and industrial | Owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	1,110		1,110		1,709
Term loans amortized cost basis by origination, before current fiscal year	1,839		1,839		9,114
Term loans amortized cost basis by origination, two years before current fiscal year	5,249		5,249		22,562
Term loans amortized cost basis by origination, three years before current fiscal year	21,824		21,824		2,593
Term loans amortized cost basis by origination, four years before current fiscal year	34,531		34,531		4,689
Term loans amortized cost basis by origination, prior	58,147		58,147		48,640
Amortized Cost Basis	0		0		79,031
Converted to Term Loans	0		0		0
Total loans	122,700		122,700		168,338
Special Mention | Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	4		4		0
Term loans amortized cost basis by origination, before current fiscal year	285		285		1,616
Term loans amortized cost basis by origination, two years before current fiscal year	71,813		71,813		169,550
Term loans amortized cost basis by origination, three years before current fiscal year	137,073		137,073		0
Term loans amortized cost basis by origination, four years before current fiscal year	44,224		44,224		48,429
Term loans amortized cost basis by origination, prior	70,128		70,128		33,903
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	323,527		323,527		253,498
Special Mention | Total commercial real estate | 1-4 family properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		3,104
Term loans amortized cost basis by origination, before current fiscal year	0		0		947
Term loans amortized cost basis by origination, two years before current fiscal year	711		711		0
Term loans amortized cost basis by origination, three years before current fiscal year	491		491		184
Term loans amortized cost basis by origination, four years before current fiscal year	179		179		0
Term loans amortized cost basis by origination, prior	92		92		311
Amortized Cost Basis	0		0		1
Converted to Term Loans	0		0		0
Total loans	1,473		1,473		4,547
Special Mention | Total commercial real estate | Land and development
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		496
Term loans amortized cost basis by origination, two years before current fiscal year	483		483		0
Term loans amortized cost basis by origination, three years before current fiscal year	29		29		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	1,165		1,165		774
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	1,677		1,677		1,270
Substandard | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	22,334		22,334		36,557
Term loans amortized cost basis by origination, before current fiscal year	20,633		20,633		14,742
Term loans amortized cost basis by origination, two years before current fiscal year	44,640		44,640		35,744
Term loans amortized cost basis by origination, three years before current fiscal year	18,700		18,700		37,186
Term loans amortized cost basis by origination, four years before current fiscal year	37,393		37,393		88,940
Term loans amortized cost basis by origination, prior	23,669		23,669		21,032
Amortized Cost Basis	191,115		191,115		182,069
Converted to Term Loans	3,737		3,737		1,685
Total loans	362,221		362,221		417,955
Substandard | Total commercial and industrial | Owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	193		193		4,388
Term loans amortized cost basis by origination, before current fiscal year	4,939		4,939		24,760
Term loans amortized cost basis by origination, two years before current fiscal year	39,397		39,397		13,616
Term loans amortized cost basis by origination, three years before current fiscal year	29,460		29,460		59,478
Term loans amortized cost basis by origination, four years before current fiscal year	48,691		48,691		17,702
Term loans amortized cost basis by origination, prior	71,850		71,850		87,306
Amortized Cost Basis	35,944		35,944		27,949
Converted to Term Loans	0		0		0
Total loans	230,474		230,474		235,199
Substandard | Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		2,083
Term loans amortized cost basis by origination, before current fiscal year	2,975		2,975		4,070
Term loans amortized cost basis by origination, two years before current fiscal year	16,159		16,159		41,278
Term loans amortized cost basis by origination, three years before current fiscal year	135,707		135,707		1,455
Term loans amortized cost basis by origination, four years before current fiscal year	2,054		2,054		1,622
Term loans amortized cost basis by origination, prior	65,859		65,859		75,850
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	222,754		222,754		126,358
Substandard | Total commercial real estate | 1-4 family properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		1,721
Term loans amortized cost basis by origination, before current fiscal year	749		749		822
Term loans amortized cost basis by origination, two years before current fiscal year	51		51		643
Term loans amortized cost basis by origination, three years before current fiscal year	944		944		465
Term loans amortized cost basis by origination, four years before current fiscal year	285		285		324
Term loans amortized cost basis by origination, prior	2,366		2,366		1,212
Amortized Cost Basis	45		45		45
Converted to Term Loans	0		0		0
Total loans	4,440		4,440		5,232
Substandard | Total commercial real estate | Land and development
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		29,204
Term loans amortized cost basis by origination, before current fiscal year	561		561		411
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		74
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	195		195		593
Term loans amortized cost basis by origination, prior	1,430		1,430		1,596
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	2,186		2,186		31,878
Substandard | Total consumer | Consumer mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	287		287		564
Term loans amortized cost basis by origination, before current fiscal year	1,880		1,880		2,810
Term loans amortized cost basis by origination, two years before current fiscal year	3,521		3,521		5,517
Term loans amortized cost basis by origination, three years before current fiscal year	6,332		6,332		15,913
Term loans amortized cost basis by origination, four years before current fiscal year	17,396		17,396		9,478
Term loans amortized cost basis by origination, prior	34,060		34,060		23,662
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	63,476		63,476		57,944
Substandard | Total consumer | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	11,874		11,874		10,231
Converted to Term Loans	6,161		6,161		5,297
Total loans	18,035		18,035		15,528
Substandard | Total consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	524		524		702
Converted to Term Loans	0		0		0
Total loans	524		524		702
Substandard | Total consumer | Other consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		573
Term loans amortized cost basis by origination, before current fiscal year	680		680		963
Term loans amortized cost basis by origination, two years before current fiscal year	1,301		1,301		3,811
Term loans amortized cost basis by origination, three years before current fiscal year	3,382		3,382		1,182
Term loans amortized cost basis by origination, four years before current fiscal year	1,274		1,274		568
Term loans amortized cost basis by origination, prior	636		636		494
Amortized Cost Basis	68		68		192
Converted to Term Loans	0		0		0
Total loans	7,341		7,341		7,783
Doubtful | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0
Term loans amortized cost basis by origination, three years before current fiscal year	9,911		9,911
Term loans amortized cost basis by origination, four years before current fiscal year	390		390
Term loans amortized cost basis by origination, prior	0		0
Amortized Cost Basis	10,684		10,684
Converted to Term Loans	0		0
Total loans	20,985		20,985
Doubtful | Total commercial and industrial | Owner-occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0
Term loans amortized cost basis by origination, prior	0		0
Amortized Cost Basis	16,406		16,406
Converted to Term Loans	0		0
Total loans	16,406		16,406
Doubtful | Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year					0
Term loans amortized cost basis by origination, before current fiscal year					0
Term loans amortized cost basis by origination, two years before current fiscal year					0
Term loans amortized cost basis by origination, three years before current fiscal year					0
Term loans amortized cost basis by origination, four years before current fiscal year					0
Term loans amortized cost basis by origination, prior					9,714
Amortized Cost Basis					0
Converted to Term Loans					0
Total loans					9,714
Loss | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		355
Amortized Cost Basis	548		548		224
Converted to Term Loans	0		0		0
Total loans	548		548		579
Loss | Total commercial real estate | Investment properties
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	5		5		10
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	5		5		10
Loss | Total consumer | Consumer mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	32		32		470
Amortized Cost Basis	0		0		0
Converted to Term Loans	0		0		0
Total loans	32		32		470
Loss | Total consumer | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	165		165		174
Converted to Term Loans	84		84		84
Total loans	249		249		258
Loss | Total consumer | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0		0
Term loans amortized cost basis by origination, two years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, three years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0		0
Term loans amortized cost basis by origination, prior	0		0		0
Amortized Cost Basis	1,279		1,279		1,222
Converted to Term Loans	0		0		0
Total loans	1,279		1,279		$ 1,222
Loss | Total consumer | Other consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
Term loans amortized cost basis by origination, current fiscal year	0		0
Term loans amortized cost basis by origination, before current fiscal year	0		0
Term loans amortized cost basis by origination, two years before current fiscal year	12		12
Term loans amortized cost basis by origination, three years before current fiscal year	0		0
Term loans amortized cost basis by origination, four years before current fiscal year	0		0
Term loans amortized cost basis by origination, prior	0		0
Amortized Cost Basis	27		27
Converted to Term Loans	0		0
Total loans	$ 39		$ 39

X

- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
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

Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

Amount, excluding accrued interest, of writeoff of revolving financing receivable converted to term loan.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount, excluding accrued interest, of reversal of credit loss expense on financing receivable transferred out of held-for-investment into held-for-sale classification. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477011/948-310-45-2

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestTransferToHeldForSaleAllowanceForCreditLossExpenseReversal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

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

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 29
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-29

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

Reference 3: 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

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ValuationAllowancesAndReservesTypeAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=syn_CommercialAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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