Loans - Credit Scores by Loan Class, Mortgage and Installment Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, before allowance for credit loss	$ 3,509,809		$ 3,465,352
Accrued interest excluded from total	10,146		10,009
Current period gross charge-offs	1,631	$ 673
Mortgage
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	32,284		281,325
Financing receivable, year two, originated, fiscal year before current fiscal year	303,486		484,225
Financing receivable, year three, originated, two years before current fiscal year	482,884		194,910
Financing receivable, year four, originated, three years before current fiscal year	190,772		74,596
Financing receivable, year five, originated, four years before current fiscal year	72,981		34,613
Financing receivable, originated, more than five years before current fiscal year	218,396		191,703
Revolving Loans Amortized Cost Basis	107,426		107,037
Financing receivable, before allowance for credit loss	1,408,229		1,368,409
Accrued interest, current fiscal year	71		910
Accrued interest, fiscal year before current	827		1,072
Accrued interest, two years before current	1,070		473
Accrued interest, three years before current	451		209
Accrued interest, four years before current	209		130
Accrued interest, more than five years before current fiscal year	738		624
Accrued interest, revolving	728		698
Accrued interest excluded from total	4,094		4,116
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	30
Gross charge-offs, revolving	0
Current period gross charge-offs	30	6
Mortgage | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	4,132		37,225
Financing receivable, year two, originated, fiscal year before current fiscal year	29,107		75,154
Financing receivable, year three, originated, two years before current fiscal year	75,151		28,038
Financing receivable, year four, originated, three years before current fiscal year	26,260		16,845
Financing receivable, year five, originated, four years before current fiscal year	16,395		6,282
Financing receivable, originated, more than five years before current fiscal year	31,706		26,396
Revolving Loans Amortized Cost Basis	11,987		12,002
Financing receivable, before allowance for credit loss	194,738		201,942
Mortgage | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	20,267		156,427
Financing receivable, year two, originated, fiscal year before current fiscal year	179,573		256,276
Financing receivable, year three, originated, two years before current fiscal year	254,741		101,298
Financing receivable, year four, originated, three years before current fiscal year	100,264		29,060
Financing receivable, year five, originated, four years before current fiscal year	28,264		9,827
Financing receivable, originated, more than five years before current fiscal year	72,988		65,818
Revolving Loans Amortized Cost Basis	53,730		53,097
Financing receivable, before allowance for credit loss	709,827		671,803
Mortgage | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	3,683		62,106
Financing receivable, year two, originated, fiscal year before current fiscal year	67,975		119,609
Financing receivable, year three, originated, two years before current fiscal year	118,237		42,879
Financing receivable, year four, originated, three years before current fiscal year	41,692		18,698
Financing receivable, year five, originated, four years before current fiscal year	18,651		7,695
Financing receivable, originated, more than five years before current fiscal year	53,142		47,163
Revolving Loans Amortized Cost Basis	28,051		27,956
Financing receivable, before allowance for credit loss	331,431		326,106
Mortgage | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	3,826		20,663
Financing receivable, year two, originated, fiscal year before current fiscal year	21,933		28,648
Financing receivable, year three, originated, two years before current fiscal year	30,053		13,836
Financing receivable, year four, originated, three years before current fiscal year	13,748		6,251
Financing receivable, year five, originated, four years before current fiscal year	6,110		6,809
Financing receivable, originated, more than five years before current fiscal year	31,774		26,172
Revolving Loans Amortized Cost Basis	10,203		10,548
Financing receivable, before allowance for credit loss	117,647		112,927
Mortgage | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	376		4,225
Financing receivable, year two, originated, fiscal year before current fiscal year	4,351		2,739
Financing receivable, year three, originated, two years before current fiscal year	2,826		6,628
Financing receivable, year four, originated, three years before current fiscal year	6,590		1,186
Financing receivable, year five, originated, four years before current fiscal year	1,182		1,549
Financing receivable, originated, more than five years before current fiscal year	13,080		12,538
Revolving Loans Amortized Cost Basis	2,359		2,342
Financing receivable, before allowance for credit loss	30,764		31,207
Mortgage | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		679
Financing receivable, year two, originated, fiscal year before current fiscal year	547		1,516
Financing receivable, year three, originated, two years before current fiscal year	1,595		56
Financing receivable, year four, originated, three years before current fiscal year	56		1,593
Financing receivable, year five, originated, four years before current fiscal year	1,580		1,593
Financing receivable, originated, more than five years before current fiscal year	7,713		6,348
Revolving Loans Amortized Cost Basis	704		695
Financing receivable, before allowance for credit loss	12,195		12,480
Mortgage | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		76
Financing receivable, year three, originated, two years before current fiscal year	75		1,411
Financing receivable, year four, originated, three years before current fiscal year	1,401		359
Financing receivable, year five, originated, four years before current fiscal year	198		570
Financing receivable, originated, more than five years before current fiscal year	6,228		5,791
Revolving Loans Amortized Cost Basis	292		297
Financing receivable, before allowance for credit loss	8,194		8,504
Mortgage | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		207
Financing receivable, year three, originated, two years before current fiscal year	206		764
Financing receivable, year four, originated, three years before current fiscal year	761		604
Financing receivable, year five, originated, four years before current fiscal year	601		288
Financing receivable, originated, more than five years before current fiscal year	1,765		1,477
Revolving Loans Amortized Cost Basis	100		100
Financing receivable, before allowance for credit loss	3,433		3,440
Mortgage | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | 1-4 family owner occupied - jumbo
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	13,859		168,357
Financing receivable, year two, originated, fiscal year before current fiscal year	187,507		359,013
Financing receivable, year three, originated, two years before current fiscal year	362,606		129,415
Financing receivable, year four, originated, three years before current fiscal year	126,418		40,986
Financing receivable, year five, originated, four years before current fiscal year	40,868		12,310
Financing receivable, originated, more than five years before current fiscal year	50,690		38,797
Revolving Loans Amortized Cost Basis	4,498		3,685
Financing receivable, before allowance for credit loss	786,446		752,563
Accrued interest, current fiscal year	32		506
Accrued interest, fiscal year before current	495		773
Accrued interest, two years before current	779		315
Accrued interest, three years before current	293		108
Accrued interest, four years before current	115		44
Accrued interest, more than five years before current fiscal year	165		127
Accrued interest, revolving	27		19
Accrued interest excluded from total	1,906		1,892
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	0
Gross charge-offs, revolving	0
Current period gross charge-offs	0
Mortgage | 1-4 family owner occupied - jumbo | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	2,430		23,764
Financing receivable, year two, originated, fiscal year before current fiscal year	22,681		54,637
Financing receivable, year three, originated, two years before current fiscal year	55,204		16,848
Financing receivable, year four, originated, three years before current fiscal year	16,129		9,211
Financing receivable, year five, originated, four years before current fiscal year	9,119		2,988
Financing receivable, originated, more than five years before current fiscal year	9,849		6,946
Revolving Loans Amortized Cost Basis	639		639
Financing receivable, before allowance for credit loss	116,051		115,033
Mortgage | 1-4 family owner occupied - jumbo | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	8,066		97,269
Financing receivable, year two, originated, fiscal year before current fiscal year	115,180		189,653
Financing receivable, year three, originated, two years before current fiscal year	190,997		71,555
Financing receivable, year four, originated, three years before current fiscal year	70,729		16,091
Financing receivable, year five, originated, four years before current fiscal year	16,158		1,828
Financing receivable, originated, more than five years before current fiscal year	17,825		16,140
Revolving Loans Amortized Cost Basis	2,323		683
Financing receivable, before allowance for credit loss	421,278		393,219
Mortgage | 1-4 family owner occupied - jumbo | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,349		34,158
Financing receivable, year two, originated, fiscal year before current fiscal year	36,580		91,189
Financing receivable, year three, originated, two years before current fiscal year	91,359		28,701
Financing receivable, year four, originated, three years before current fiscal year	27,314		12,666
Financing receivable, year five, originated, four years before current fiscal year	12,586		2,775
Financing receivable, originated, more than five years before current fiscal year	11,535		8,852
Revolving Loans Amortized Cost Basis	1,536		1,536
Financing receivable, before allowance for credit loss	182,259		179,877
Mortgage | 1-4 family owner occupied - jumbo | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	2,014		10,905
Financing receivable, year two, originated, fiscal year before current fiscal year	9,674		20,743
Financing receivable, year three, originated, two years before current fiscal year	22,268		7,216
Financing receivable, year four, originated, three years before current fiscal year	7,178		2,554
Financing receivable, year five, originated, four years before current fiscal year	2,542		4,250
Financing receivable, originated, more than five years before current fiscal year	8,224		4,020
Revolving Loans Amortized Cost Basis	0		827
Financing receivable, before allowance for credit loss	51,900		50,515
Mortgage | 1-4 family owner occupied - jumbo | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		1,712
Financing receivable, year two, originated, fiscal year before current fiscal year	2,845		1,275
Financing receivable, year three, originated, two years before current fiscal year	1,268		4,534
Financing receivable, year four, originated, three years before current fiscal year	4,511		464
Financing receivable, year five, originated, four years before current fiscal year	463		0
Financing receivable, originated, more than five years before current fiscal year	2,103		2,150
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	11,190		10,135
Mortgage | 1-4 family owner occupied - jumbo | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		549
Financing receivable, year two, originated, fiscal year before current fiscal year	547		1,516
Financing receivable, year three, originated, two years before current fiscal year	1,510		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		469
Financing receivable, originated, more than five years before current fiscal year	467		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	2,524		2,534
Mortgage | 1-4 family owner occupied - jumbo | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		561
Financing receivable, year four, originated, three years before current fiscal year	557		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	687		689
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	1,244		1,250
Mortgage | 1-4 family owner occupied - jumbo | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | 1-4 family owner occupied - jumbo | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | 1-4 family owner occupied - non-jumbo
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	9,822		69,878
Financing receivable, year two, originated, fiscal year before current fiscal year	76,424		56,896
Financing receivable, year three, originated, two years before current fiscal year	53,594		33,325
Financing receivable, year four, originated, three years before current fiscal year	33,707		19,157
Financing receivable, year five, originated, four years before current fiscal year	18,439		14,658
Financing receivable, originated, more than five years before current fiscal year	86,250		75,264
Revolving Loans Amortized Cost Basis	16,747		16,454
Financing receivable, before allowance for credit loss	294,983		285,632
Accrued interest, current fiscal year	37		283
Accrued interest, fiscal year before current	207		123
Accrued interest, two years before current	118		78
Accrued interest, three years before current	81		58
Accrued interest, four years before current	54		58
Accrued interest, more than five years before current fiscal year	283		242
Accrued interest, revolving	103		111
Accrued interest excluded from total	883		953
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	25
Gross charge-offs, revolving	0
Current period gross charge-offs	25
Mortgage | 1-4 family owner occupied - non-jumbo | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,249		8,894
Financing receivable, year two, originated, fiscal year before current fiscal year	2,883		10,498
Financing receivable, year three, originated, two years before current fiscal year	9,858		5,558
Financing receivable, year four, originated, three years before current fiscal year	5,497		3,220
Financing receivable, year five, originated, four years before current fiscal year	3,151		2,074
Financing receivable, originated, more than five years before current fiscal year	8,239		6,074
Revolving Loans Amortized Cost Basis	2,396		1,680
Financing receivable, before allowance for credit loss	33,273		37,998
Mortgage | 1-4 family owner occupied - non-jumbo | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	4,589		33,833
Financing receivable, year two, originated, fiscal year before current fiscal year	40,092		26,239
Financing receivable, year three, originated, two years before current fiscal year	24,364		13,956
Financing receivable, year four, originated, three years before current fiscal year	14,210		6,018
Financing receivable, year five, originated, four years before current fiscal year	5,531		4,501
Financing receivable, originated, more than five years before current fiscal year	21,599		18,009
Revolving Loans Amortized Cost Basis	9,192		9,936
Financing receivable, before allowance for credit loss	119,577		112,492
Mortgage | 1-4 family owner occupied - non-jumbo | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,955		17,629
Financing receivable, year two, originated, fiscal year before current fiscal year	21,924		13,526
Financing receivable, year three, originated, two years before current fiscal year	12,660		7,626
Financing receivable, year four, originated, three years before current fiscal year	7,864		3,938
Financing receivable, year five, originated, four years before current fiscal year	4,079		3,263
Financing receivable, originated, more than five years before current fiscal year	24,649		22,506
Revolving Loans Amortized Cost Basis	3,743		3,509
Financing receivable, before allowance for credit loss	76,874		71,997
Mortgage | 1-4 family owner occupied - non-jumbo | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,653		7,983
Financing receivable, year two, originated, fiscal year before current fiscal year	10,970		5,124
Financing receivable, year three, originated, two years before current fiscal year	5,025		2,679
Financing receivable, year four, originated, three years before current fiscal year	2,653		3,270
Financing receivable, year five, originated, four years before current fiscal year	3,144		1,992
Financing receivable, originated, more than five years before current fiscal year	12,260		10,893
Revolving Loans Amortized Cost Basis	1,071		983
Financing receivable, before allowance for credit loss	36,776		32,924
Mortgage | 1-4 family owner occupied - non-jumbo | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	376		1,539
Financing receivable, year two, originated, fiscal year before current fiscal year	555		1,226
Financing receivable, year three, originated, two years before current fiscal year	1,321		1,836
Financing receivable, year four, originated, three years before current fiscal year	1,822		423
Financing receivable, year five, originated, four years before current fiscal year	421		1,035
Financing receivable, originated, more than five years before current fiscal year	7,225		7,044
Revolving Loans Amortized Cost Basis	99		99
Financing receivable, before allowance for credit loss	11,819		13,202
Mortgage | 1-4 family owner occupied - non-jumbo | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	85		56
Financing receivable, year four, originated, three years before current fiscal year	56		1,472
Financing receivable, year five, originated, four years before current fiscal year	1,460		938
Financing receivable, originated, more than five years before current fiscal year	6,275		5,481
Revolving Loans Amortized Cost Basis	132		132
Financing receivable, before allowance for credit loss	8,008		8,079
Mortgage | 1-4 family owner occupied - non-jumbo | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		76
Financing receivable, year three, originated, two years before current fiscal year	75		850
Financing receivable, year four, originated, three years before current fiscal year	844		341
Financing receivable, year five, originated, four years before current fiscal year	181		570
Financing receivable, originated, more than five years before current fiscal year	4,595		4,142
Revolving Loans Amortized Cost Basis	114		115
Financing receivable, before allowance for credit loss	5,809		6,094
Mortgage | 1-4 family owner occupied - non-jumbo | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		207
Financing receivable, year three, originated, two years before current fiscal year	206		764
Financing receivable, year four, originated, three years before current fiscal year	761		475
Financing receivable, year five, originated, four years before current fiscal year	472		285
Financing receivable, originated, more than five years before current fiscal year	1,408		1,115
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	2,847		2,846
Mortgage | 1-4 family owner occupied - non-jumbo | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | 1-4 family non-owner occupied
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	7,773		37,669
Financing receivable, year two, originated, fiscal year before current fiscal year	33,570		60,722
Financing receivable, year three, originated, two years before current fiscal year	59,125		26,725
Financing receivable, year four, originated, three years before current fiscal year	25,377		12,003
Financing receivable, year five, originated, four years before current fiscal year	11,256		5,336
Financing receivable, originated, more than five years before current fiscal year	35,540		31,752
Revolving Loans Amortized Cost Basis	8,222		8,893
Financing receivable, before allowance for credit loss	180,863		183,100
Accrued interest, current fiscal year	2		106
Accrued interest, fiscal year before current	106		161
Accrued interest, two years before current	159		69
Accrued interest, three years before current	66		36
Accrued interest, four years before current	32		21
Accrued interest, more than five years before current fiscal year	132		108
Accrued interest, revolving	55		57
Accrued interest excluded from total	552		558
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	0
Gross charge-offs, revolving	0
Current period gross charge-offs	0
Mortgage | 1-4 family non-owner occupied | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	431		4,329
Financing receivable, year two, originated, fiscal year before current fiscal year	3,310		9,308
Financing receivable, year three, originated, two years before current fiscal year	9,225		5,178
Financing receivable, year four, originated, three years before current fiscal year	4,208		4,147
Financing receivable, year five, originated, four years before current fiscal year	3,864		752
Financing receivable, originated, more than five years before current fiscal year	6,022		5,842
Revolving Loans Amortized Cost Basis	1,553		1,683
Financing receivable, before allowance for credit loss	28,613		31,239
Mortgage | 1-4 family non-owner occupied | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	7,031		22,171
Financing receivable, year two, originated, fiscal year before current fiscal year	20,418		36,363
Financing receivable, year three, originated, two years before current fiscal year	35,506		12,242
Financing receivable, year four, originated, three years before current fiscal year	11,927		6,103
Financing receivable, year five, originated, four years before current fiscal year	5,737		2,549
Financing receivable, originated, more than five years before current fiscal year	14,167		12,257
Revolving Loans Amortized Cost Basis	3,928		4,132
Financing receivable, before allowance for credit loss	98,714		95,817
Mortgage | 1-4 family non-owner occupied | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	311		8,739
Financing receivable, year two, originated, fiscal year before current fiscal year	7,913		12,423
Financing receivable, year three, originated, two years before current fiscal year	11,786		5,507
Financing receivable, year four, originated, three years before current fiscal year	5,466		1,335
Financing receivable, year five, originated, four years before current fiscal year	1,239		1,198
Financing receivable, originated, more than five years before current fiscal year	7,843		6,825
Revolving Loans Amortized Cost Basis	1,641		1,930
Financing receivable, before allowance for credit loss	36,199		37,957
Mortgage | 1-4 family non-owner occupied | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		1,476
Financing receivable, year two, originated, fiscal year before current fiscal year	978		2,489
Financing receivable, year three, originated, two years before current fiscal year	2,470		3,798
Financing receivable, year four, originated, three years before current fiscal year	3,776		190
Financing receivable, year five, originated, four years before current fiscal year	189		292
Financing receivable, originated, more than five years before current fiscal year	4,546		4,350
Revolving Loans Amortized Cost Basis	504		550
Financing receivable, before allowance for credit loss	12,463		13,145
Mortgage | 1-4 family non-owner occupied | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		954
Financing receivable, year two, originated, fiscal year before current fiscal year	951		139
Financing receivable, year three, originated, two years before current fiscal year	138		0
Financing receivable, year four, originated, three years before current fiscal year	0		107
Financing receivable, year five, originated, four years before current fiscal year	107		491
Financing receivable, originated, more than five years before current fiscal year	1,925		1,475
Revolving Loans Amortized Cost Basis	203		203
Financing receivable, before allowance for credit loss	3,324		3,369
Mortgage | 1-4 family non-owner occupied | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		121
Financing receivable, year five, originated, four years before current fiscal year	120		54
Financing receivable, originated, more than five years before current fiscal year	450		404
Revolving Loans Amortized Cost Basis	335		335
Financing receivable, before allowance for credit loss	905		914
Mortgage | 1-4 family non-owner occupied | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	394		402
Revolving Loans Amortized Cost Basis	58		60
Financing receivable, before allowance for credit loss	452		462
Mortgage | 1-4 family non-owner occupied | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	193		197
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	193		197
Mortgage | 1-4 family non-owner occupied | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | 1-4 family - 2nd lien
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	830		4,184
Financing receivable, year two, originated, fiscal year before current fiscal year	4,838		5,242
Financing receivable, year three, originated, two years before current fiscal year	5,362		4,067
Financing receivable, year four, originated, three years before current fiscal year	3,903		2,267
Financing receivable, year five, originated, four years before current fiscal year	2,236		1,425
Financing receivable, originated, more than five years before current fiscal year	10,894		10,087
Revolving Loans Amortized Cost Basis	77,959		78,005
Financing receivable, before allowance for credit loss	106,022		105,277
Accrued interest, current fiscal year	0		11
Accrued interest, fiscal year before current	14		11
Accrued interest, two years before current	10		8
Accrued interest, three years before current	8		7
Accrued interest, four years before current	7		4
Accrued interest, more than five years before current fiscal year	40		36
Accrued interest, revolving	543		511
Accrued interest excluded from total	622		588
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	5
Gross charge-offs, revolving	0
Current period gross charge-offs	5
Mortgage | 1-4 family - 2nd lien | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	22		238
Financing receivable, year two, originated, fiscal year before current fiscal year	233		282
Financing receivable, year three, originated, two years before current fiscal year	439		454
Financing receivable, year four, originated, three years before current fiscal year	426		267
Financing receivable, year five, originated, four years before current fiscal year	261		200
Financing receivable, originated, more than five years before current fiscal year	686		503
Revolving Loans Amortized Cost Basis	7,399		8,000
Financing receivable, before allowance for credit loss	9,466		9,944
Mortgage | 1-4 family - 2nd lien | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	581		2,109
Financing receivable, year two, originated, fiscal year before current fiscal year	2,843		2,749
Financing receivable, year three, originated, two years before current fiscal year	2,730		2,334
Financing receivable, year four, originated, three years before current fiscal year	2,196		665
Financing receivable, year five, originated, four years before current fiscal year	656		333
Financing receivable, originated, more than five years before current fiscal year	3,639		3,597
Revolving Loans Amortized Cost Basis	38,287		38,346
Financing receivable, before allowance for credit loss	50,932		50,133
Mortgage | 1-4 family - 2nd lien | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	68		1,495
Financing receivable, year two, originated, fiscal year before current fiscal year	1,558		1,820
Financing receivable, year three, originated, two years before current fiscal year	1,804		931
Financing receivable, year four, originated, three years before current fiscal year	935		759
Financing receivable, year five, originated, four years before current fiscal year	747		459
Financing receivable, originated, more than five years before current fiscal year	3,004		2,649
Revolving Loans Amortized Cost Basis	21,131		20,981
Financing receivable, before allowance for credit loss	29,247		29,094
Mortgage | 1-4 family - 2nd lien | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	159		192
Financing receivable, year two, originated, fiscal year before current fiscal year	204		292
Financing receivable, year three, originated, two years before current fiscal year	290		90
Financing receivable, year four, originated, three years before current fiscal year	89		237
Financing receivable, year five, originated, four years before current fiscal year	235		275
Financing receivable, originated, more than five years before current fiscal year	1,656		1,496
Revolving Loans Amortized Cost Basis	8,628		8,188
Financing receivable, before allowance for credit loss	11,261		10,770
Mortgage | 1-4 family - 2nd lien | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		20
Financing receivable, year two, originated, fiscal year before current fiscal year	0		99
Financing receivable, year three, originated, two years before current fiscal year	99		258
Financing receivable, year four, originated, three years before current fiscal year	257		192
Financing receivable, year five, originated, four years before current fiscal year	191		23
Financing receivable, originated, more than five years before current fiscal year	945		974
Revolving Loans Amortized Cost Basis	2,057		2,040
Financing receivable, before allowance for credit loss	3,549		3,606
Mortgage | 1-4 family - 2nd lien | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		130
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		132
Financing receivable, originated, more than five years before current fiscal year	492		395
Revolving Loans Amortized Cost Basis	237		228
Financing receivable, before allowance for credit loss	729		885
Mortgage | 1-4 family - 2nd lien | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		18
Financing receivable, year five, originated, four years before current fiscal year	17		0
Financing receivable, originated, more than five years before current fiscal year	415		418
Revolving Loans Amortized Cost Basis	120		122
Financing receivable, before allowance for credit loss	552		558
Mortgage | 1-4 family - 2nd lien | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		129
Financing receivable, year five, originated, four years before current fiscal year	129		3
Financing receivable, originated, more than five years before current fiscal year	57		55
Revolving Loans Amortized Cost Basis	100		100
Financing receivable, before allowance for credit loss	286		287
Mortgage | 1-4 family - 2nd lien | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Mortgage | Resort lending
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		1,237
Financing receivable, year two, originated, fiscal year before current fiscal year	1,147		2,352
Financing receivable, year three, originated, two years before current fiscal year	2,197		1,378
Financing receivable, year four, originated, three years before current fiscal year	1,367		183
Financing receivable, year five, originated, four years before current fiscal year	182		884
Financing receivable, originated, more than five years before current fiscal year	35,022		35,803
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	39,915		41,837
Accrued interest, current fiscal year	0		4
Accrued interest, fiscal year before current	5		4
Accrued interest, two years before current	4		3
Accrued interest, three years before current	3		0
Accrued interest, four years before current	1		3
Accrued interest, more than five years before current fiscal year	118		111
Accrued interest, revolving	0		0
Accrued interest excluded from total	131		125
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	0
Gross charge-offs, revolving	0
Current period gross charge-offs	0
Mortgage | Resort lending | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		429
Financing receivable, year three, originated, two years before current fiscal year	425		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		268
Financing receivable, originated, more than five years before current fiscal year	6,910		7,031
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	7,335		7,728
Mortgage | Resort lending | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		1,045
Financing receivable, year two, originated, fiscal year before current fiscal year	1,040		1,272
Financing receivable, year three, originated, two years before current fiscal year	1,144		1,211
Financing receivable, year four, originated, three years before current fiscal year	1,202		183
Financing receivable, year five, originated, four years before current fiscal year	182		616
Financing receivable, originated, more than five years before current fiscal year	15,758		15,815
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	19,326		20,142
Mortgage | Resort lending | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		85
Financing receivable, year two, originated, fiscal year before current fiscal year	0		651
Financing receivable, year three, originated, two years before current fiscal year	628		114
Financing receivable, year four, originated, three years before current fiscal year	113		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	6,111		6,331
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	6,852		7,181
Mortgage | Resort lending | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		107
Financing receivable, year two, originated, fiscal year before current fiscal year	107		0
Financing receivable, year three, originated, two years before current fiscal year	0		53
Financing receivable, year four, originated, three years before current fiscal year	52		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	5,088		5,413
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	5,247		5,573
Mortgage | Resort lending | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	882		895
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	882		895
Mortgage | Resort lending | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	29		68
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	29		68
Mortgage | Resort lending | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	137		140
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	137		140
Mortgage | Resort lending | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	107		110
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	107		110
Mortgage | Resort lending | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Financing receivable, before allowance for credit loss	0		0
Installment
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	30,798		214,481
Financing receivable, year two, originated, fiscal year before current fiscal year	206,110		182,911
Financing receivable, year three, originated, two years before current fiscal year	174,255		75,947
Financing receivable, year four, originated, three years before current fiscal year	71,683		59,530
Financing receivable, year five, originated, four years before current fiscal year	55,904		42,029
Financing receivable, originated, more than five years before current fiscal year	91,537		55,192
Financing receivable, before allowance for credit loss	630,287		630,090
Accrued interest, current fiscal year	101		474
Accrued interest, fiscal year before current	447		423
Accrued interest, two years before current	385		181
Accrued interest, three years before current	164		155
Accrued interest, four years before current	134		100
Accrued interest, more than five years before current fiscal year	234		151
Accrued interest excluded from total	1,465		1,484
Gross charge-offs, current fiscal year	387
Gross charge-offs, fiscal year before current	38
Gross charge-offs, two years before current	114
Gross charge-offs, three years before current	20
Gross charge-offs, four years before current	19
Gross charge-offs, more than five years before current	63
Gross charge-offs, revolving	641
Current period gross charge-offs	641	$ 667
Installment | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	4,872		19,202
Financing receivable, year two, originated, fiscal year before current fiscal year	18,624		21,162
Financing receivable, year three, originated, two years before current fiscal year	20,229		10,364
Financing receivable, year four, originated, three years before current fiscal year	9,659		10,878
Financing receivable, year five, originated, four years before current fiscal year	10,186		7,394
Financing receivable, originated, more than five years before current fiscal year	17,284		11,005
Financing receivable, before allowance for credit loss	80,854		80,005
Installment | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	16,892		111,745
Financing receivable, year two, originated, fiscal year before current fiscal year	107,168		97,453
Financing receivable, year three, originated, two years before current fiscal year	93,252		41,875
Financing receivable, year four, originated, three years before current fiscal year	39,649		31,819
Financing receivable, year five, originated, four years before current fiscal year	29,910		23,482
Financing receivable, originated, more than five years before current fiscal year	46,393		25,934
Financing receivable, before allowance for credit loss	333,264		332,308
Installment | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	6,921		48,381
Financing receivable, year two, originated, fiscal year before current fiscal year	46,648		46,166
Financing receivable, year three, originated, two years before current fiscal year	43,666		18,365
Financing receivable, year four, originated, three years before current fiscal year	17,482		12,108
Financing receivable, year five, originated, four years before current fiscal year	11,491		7,635
Financing receivable, originated, more than five years before current fiscal year	18,406		11,724
Financing receivable, before allowance for credit loss	144,614		144,379
Installment | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,430		31,686
Financing receivable, year two, originated, fiscal year before current fiscal year	31,190		13,502
Financing receivable, year three, originated, two years before current fiscal year	12,804		4,147
Financing receivable, year four, originated, three years before current fiscal year	3,797		3,244
Financing receivable, year five, originated, four years before current fiscal year	3,055		2,164
Financing receivable, originated, more than five years before current fiscal year	6,161		4,403
Financing receivable, before allowance for credit loss	58,437		59,146
Installment | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	43		2,165
Financing receivable, year two, originated, fiscal year before current fiscal year	2,051		3,285
Financing receivable, year three, originated, two years before current fiscal year	3,029		650
Financing receivable, year four, originated, three years before current fiscal year	628		954
Financing receivable, year five, originated, four years before current fiscal year	792		579
Financing receivable, originated, more than five years before current fiscal year	1,934		1,445
Financing receivable, before allowance for credit loss	8,477		9,078
Installment | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		251
Financing receivable, year two, originated, fiscal year before current fiscal year	244		639
Financing receivable, year three, originated, two years before current fiscal year	606		315
Financing receivable, year four, originated, three years before current fiscal year	250		309
Financing receivable, year five, originated, four years before current fiscal year	276		552
Financing receivable, originated, more than five years before current fiscal year	978		479
Financing receivable, before allowance for credit loss	2,354		2,545
Installment | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1		344
Financing receivable, year two, originated, fiscal year before current fiscal year	179		567
Financing receivable, year three, originated, two years before current fiscal year	536		202
Financing receivable, year four, originated, three years before current fiscal year	192		168
Financing receivable, year five, originated, four years before current fiscal year	148		184
Financing receivable, originated, more than five years before current fiscal year	288		135
Financing receivable, before allowance for credit loss	1,344		1,600
Installment | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		6
Financing receivable, year two, originated, fiscal year before current fiscal year	6		137
Financing receivable, year three, originated, two years before current fiscal year	133		29
Financing receivable, year four, originated, three years before current fiscal year	26		50
Financing receivable, year five, originated, four years before current fiscal year	46		39
Financing receivable, originated, more than five years before current fiscal year	93		67
Financing receivable, before allowance for credit loss	304		328
Installment | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	639		701
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Financing receivable, before allowance for credit loss	639		701
Installment | Boat lending
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	14,785		72,682
Financing receivable, year two, originated, fiscal year before current fiscal year	70,149		65,428
Financing receivable, year three, originated, two years before current fiscal year	63,045		33,576
Financing receivable, year four, originated, three years before current fiscal year	32,284		29,128
Financing receivable, year five, originated, four years before current fiscal year	27,688		22,350
Financing receivable, originated, more than five years before current fiscal year	49,293		29,801
Financing receivable, before allowance for credit loss	257,244		252,965
Accrued interest, current fiscal year	50		171
Accrued interest, fiscal year before current	162		148
Accrued interest, two years before current	136		84
Accrued interest, three years before current	76		78
Accrued interest, four years before current	65		52
Accrued interest, more than five years before current fiscal year	108		68
Accrued interest excluded from total	597		601
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	28
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	1
Gross charge-offs, revolving	29
Installment | Boat lending | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	2,601		7,901
Financing receivable, year two, originated, fiscal year before current fiscal year	7,806		8,763
Financing receivable, year three, originated, two years before current fiscal year	8,379		4,391
Financing receivable, year four, originated, three years before current fiscal year	4,140		5,102
Financing receivable, year five, originated, four years before current fiscal year	4,760		3,612
Financing receivable, originated, more than five years before current fiscal year	9,061		5,955
Financing receivable, before allowance for credit loss	36,747		35,724
Installment | Boat lending | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	9,174		44,498
Financing receivable, year two, originated, fiscal year before current fiscal year	42,845		37,531
Financing receivable, year three, originated, two years before current fiscal year	36,050		20,179
Financing receivable, year four, originated, three years before current fiscal year	19,487		16,506
Financing receivable, year five, originated, four years before current fiscal year	15,723		12,814
Financing receivable, originated, more than five years before current fiscal year	25,679		14,504
Financing receivable, before allowance for credit loss	148,958		146,032
Installment | Boat lending | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	2,307		15,390
Financing receivable, year two, originated, fiscal year before current fiscal year	14,815		13,704
Financing receivable, year three, originated, two years before current fiscal year	13,361		7,281
Financing receivable, year four, originated, three years before current fiscal year	7,059		5,848
Financing receivable, year five, originated, four years before current fiscal year	5,649		4,357
Financing receivable, originated, more than five years before current fiscal year	10,011		6,132
Financing receivable, before allowance for credit loss	53,202		52,712
Installment | Boat lending | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	703		3,933
Financing receivable, year two, originated, fiscal year before current fiscal year	3,890		4,135
Financing receivable, year three, originated, two years before current fiscal year	3,974		1,498
Financing receivable, year four, originated, three years before current fiscal year	1,374		1,290
Financing receivable, year five, originated, four years before current fiscal year	1,241		1,032
Financing receivable, originated, more than five years before current fiscal year	3,088		2,213
Financing receivable, before allowance for credit loss	14,270		14,101
Installment | Boat lending | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		661
Financing receivable, year two, originated, fiscal year before current fiscal year	653		1,043
Financing receivable, year three, originated, two years before current fiscal year	1,033		149
Financing receivable, year four, originated, three years before current fiscal year	146		286
Financing receivable, year five, originated, four years before current fiscal year	222		200
Financing receivable, originated, more than five years before current fiscal year	823		670
Financing receivable, before allowance for credit loss	2,877		3,009
Installment | Boat lending | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		22
Financing receivable, year two, originated, fiscal year before current fiscal year	22		195
Financing receivable, year three, originated, two years before current fiscal year	192		16
Financing receivable, year four, originated, three years before current fiscal year	16		53
Financing receivable, year five, originated, four years before current fiscal year	51		203
Financing receivable, originated, more than five years before current fiscal year	466		274
Financing receivable, before allowance for credit loss	747		763
Installment | Boat lending | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		277
Financing receivable, year two, originated, fiscal year before current fiscal year	118		57
Financing receivable, year three, originated, two years before current fiscal year	56		62
Financing receivable, year four, originated, three years before current fiscal year	62		43
Financing receivable, year five, originated, four years before current fiscal year	42		106
Financing receivable, originated, more than five years before current fiscal year	120		30
Financing receivable, before allowance for credit loss	398		575
Installment | Boat lending | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		26
Financing receivable, originated, more than five years before current fiscal year	45		23
Financing receivable, before allowance for credit loss	45		49
Installment | Boat lending | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Financing receivable, before allowance for credit loss	0		0
Installment | Recreational vehicle lending
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	6,812		89,938
Financing receivable, year two, originated, fiscal year before current fiscal year	87,317		94,529
Financing receivable, year three, originated, two years before current fiscal year	90,303		30,598
Financing receivable, year four, originated, three years before current fiscal year	28,958		23,305
Financing receivable, year five, originated, four years before current fiscal year	22,019		15,937
Financing receivable, originated, more than five years before current fiscal year	30,170		16,366
Financing receivable, before allowance for credit loss	265,579		270,673
Accrued interest, current fiscal year	22		219
Accrued interest, fiscal year before current	211		227
Accrued interest, two years before current	207		72
Accrued interest, three years before current	66		58
Accrued interest, four years before current	52		38
Accrued interest, more than five years before current fiscal year	66		34
Accrued interest excluded from total	624		648
Gross charge-offs, current fiscal year	0
Gross charge-offs, fiscal year before current	10
Gross charge-offs, two years before current	114
Gross charge-offs, three years before current	20
Gross charge-offs, four years before current	19
Gross charge-offs, more than five years before current	0
Gross charge-offs, revolving	163
Installment | Recreational vehicle lending | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,068		9,327
Financing receivable, year two, originated, fiscal year before current fiscal year	8,981		10,752
Financing receivable, year three, originated, two years before current fiscal year	10,345		4,524
Financing receivable, year four, originated, three years before current fiscal year	4,279		4,834
Financing receivable, year five, originated, four years before current fiscal year	4,583		3,416
Financing receivable, originated, more than five years before current fiscal year	7,230		4,319
Financing receivable, before allowance for credit loss	36,486		37,172
Installment | Recreational vehicle lending | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	3,910		51,555
Financing receivable, year two, originated, fiscal year before current fiscal year	50,019		49,949
Financing receivable, year three, originated, two years before current fiscal year	48,016		16,175
Financing receivable, year four, originated, three years before current fiscal year	15,319		11,920
Financing receivable, year five, originated, four years before current fiscal year	11,255		8,990
Financing receivable, originated, more than five years before current fiscal year	15,671		7,818
Financing receivable, before allowance for credit loss	144,190		146,407
Installment | Recreational vehicle lending | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,675		23,143
Financing receivable, year two, originated, fiscal year before current fiscal year	22,525		24,945
Financing receivable, year three, originated, two years before current fiscal year	23,499		7,680
Financing receivable, year four, originated, three years before current fiscal year	7,313		4,459
Financing receivable, year five, originated, four years before current fiscal year	4,258		2,279
Financing receivable, originated, more than five years before current fiscal year	4,874		2,939
Financing receivable, before allowance for credit loss	64,144		65,445
Installment | Recreational vehicle lending | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	159		5,013
Financing receivable, year two, originated, fiscal year before current fiscal year	4,905		6,516
Financing receivable, year three, originated, two years before current fiscal year	6,284		1,598
Financing receivable, year four, originated, three years before current fiscal year	1,469		1,361
Financing receivable, year five, originated, four years before current fiscal year	1,308		727
Financing receivable, originated, more than five years before current fiscal year	1,518		904
Financing receivable, before allowance for credit loss	15,643		16,119
Installment | Recreational vehicle lending | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		793
Financing receivable, year two, originated, fiscal year before current fiscal year	782		1,608
Financing receivable, year three, originated, two years before current fiscal year	1,431		374
Financing receivable, year four, originated, three years before current fiscal year	365		446
Financing receivable, year five, originated, four years before current fiscal year	370		232
Financing receivable, originated, more than five years before current fiscal year	484		268
Financing receivable, before allowance for credit loss	3,432		3,721
Installment | Recreational vehicle lending | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		107
Financing receivable, year two, originated, fiscal year before current fiscal year	105		381
Financing receivable, year three, originated, two years before current fiscal year	355		129
Financing receivable, year four, originated, three years before current fiscal year	97		202
Financing receivable, year five, originated, four years before current fiscal year	178		234
Financing receivable, originated, more than five years before current fiscal year	307		87
Financing receivable, before allowance for credit loss	1,042		1,140
Installment | Recreational vehicle lending | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		293
Financing receivable, year three, originated, two years before current fiscal year	290		111
Financing receivable, year four, originated, three years before current fiscal year	109		61
Financing receivable, year five, originated, four years before current fiscal year	46		59
Financing receivable, originated, more than five years before current fiscal year	72		15
Financing receivable, before allowance for credit loss	517		539
Installment | Recreational vehicle lending | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		85
Financing receivable, year three, originated, two years before current fiscal year	83		7
Financing receivable, year four, originated, three years before current fiscal year	7		22
Financing receivable, year five, originated, four years before current fiscal year	21		0
Financing receivable, originated, more than five years before current fiscal year	14		16
Financing receivable, before allowance for credit loss	125		130
Installment | Recreational vehicle lending | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Financing receivable, before allowance for credit loss	0		0
Installment | Other
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	9,201		51,861
Financing receivable, year two, originated, fiscal year before current fiscal year	48,644		22,954
Financing receivable, year three, originated, two years before current fiscal year	20,907		11,773
Financing receivable, year four, originated, three years before current fiscal year	10,441		7,097
Financing receivable, year five, originated, four years before current fiscal year	6,197		3,742
Financing receivable, originated, more than five years before current fiscal year	12,074		9,025
Financing receivable, before allowance for credit loss	107,464		106,452
Accrued interest, current fiscal year	29		84
Accrued interest, fiscal year before current	74		48
Accrued interest, two years before current	42		25
Accrued interest, three years before current	22		19
Accrued interest, four years before current	17		10
Accrued interest, more than five years before current fiscal year	60		49
Accrued interest excluded from total	244		235
Gross charge-offs, current fiscal year	387
Gross charge-offs, fiscal year before current	0
Gross charge-offs, two years before current	0
Gross charge-offs, three years before current	0
Gross charge-offs, four years before current	0
Gross charge-offs, more than five years before current	62
Gross charge-offs, revolving	449
Installment | Other | 800 and above
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1,203		1,974
Financing receivable, year two, originated, fiscal year before current fiscal year	1,837		1,647
Financing receivable, year three, originated, two years before current fiscal year	1,505		1,449
Financing receivable, year four, originated, three years before current fiscal year	1,240		942
Financing receivable, year five, originated, four years before current fiscal year	843		366
Financing receivable, originated, more than five years before current fiscal year	993		731
Financing receivable, before allowance for credit loss	7,621		7,109
Installment | Other | 750-799
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	3,808		15,692
Financing receivable, year two, originated, fiscal year before current fiscal year	14,304		9,973
Financing receivable, year three, originated, two years before current fiscal year	9,186		5,521
Financing receivable, year four, originated, three years before current fiscal year	4,843		3,393
Financing receivable, year five, originated, four years before current fiscal year	2,932		1,678
Financing receivable, originated, more than five years before current fiscal year	5,043		3,612
Financing receivable, before allowance for credit loss	40,116		39,869
Installment | Other | 700-749
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	2,939		9,848
Financing receivable, year two, originated, fiscal year before current fiscal year	9,308		7,517
Financing receivable, year three, originated, two years before current fiscal year	6,806		3,404
Financing receivable, year four, originated, three years before current fiscal year	3,110		1,801
Financing receivable, year five, originated, four years before current fiscal year	1,584		999
Financing receivable, originated, more than five years before current fiscal year	3,521		2,653
Financing receivable, before allowance for credit loss	27,268		26,222
Installment | Other | 650-699
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	568		22,740
Financing receivable, year two, originated, fiscal year before current fiscal year	22,395		2,851
Financing receivable, year three, originated, two years before current fiscal year	2,546		1,051
Financing receivable, year four, originated, three years before current fiscal year	954		593
Financing receivable, year five, originated, four years before current fiscal year	506		405
Financing receivable, originated, more than five years before current fiscal year	1,555		1,286
Financing receivable, before allowance for credit loss	28,524		28,926
Installment | Other | 600-649
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	43		711
Financing receivable, year two, originated, fiscal year before current fiscal year	616		634
Financing receivable, year three, originated, two years before current fiscal year	565		127
Financing receivable, year four, originated, three years before current fiscal year	117		222
Financing receivable, year five, originated, four years before current fiscal year	200		147
Financing receivable, originated, more than five years before current fiscal year	627		507
Financing receivable, before allowance for credit loss	2,168		2,348
Installment | Other | 550-599
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		122
Financing receivable, year two, originated, fiscal year before current fiscal year	117		63
Financing receivable, year three, originated, two years before current fiscal year	59		170
Financing receivable, year four, originated, three years before current fiscal year	137		54
Financing receivable, year five, originated, four years before current fiscal year	47		115
Financing receivable, originated, more than five years before current fiscal year	205		118
Financing receivable, before allowance for credit loss	565		642
Installment | Other | 500-549
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	1		67
Financing receivable, year two, originated, fiscal year before current fiscal year	61		217
Financing receivable, year three, originated, two years before current fiscal year	190		29
Financing receivable, year four, originated, three years before current fiscal year	21		64
Financing receivable, year five, originated, four years before current fiscal year	60		19
Financing receivable, originated, more than five years before current fiscal year	96		90
Financing receivable, before allowance for credit loss	429		486
Installment | Other | Under 500
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	0		6
Financing receivable, year two, originated, fiscal year before current fiscal year	6		52
Financing receivable, year three, originated, two years before current fiscal year	50		22
Financing receivable, year four, originated, three years before current fiscal year	19		28
Financing receivable, year five, originated, four years before current fiscal year	25		13
Financing receivable, originated, more than five years before current fiscal year	34		28
Financing receivable, before allowance for credit loss	134		149
Installment | Other | Unknown
Summary of Credit Scores by Loan Class [Abstract]
Financing receivable, year one, originated, current fiscal year	639		701
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Financing receivable, before allowance for credit loss	$ 639		$ 701