XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.26.1

Allowance for Credit Losses - Schedule of Credit Quality Indicators by Commercial and Industrial Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans | $ 6,477,943 | $ 6,446,245
Commercial and industrial | Commercial and industrial other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 63,659 | 188,870
One year before current fiscal year | 164,435 | 121,398
Two years before current fiscal year | 115,762 | 83,406
Three years before current fiscal year | 74,325 | 75,131
Four years before current fiscal year | 77,445 | 37,672
Prior | 151,954 | 128,366
Revolving Loans Amortized Cost Basis | 359,786 | 342,383
Revolving Loans Converted to Term | 5,901 | 8,947
Total Loans | 1,013,267 | 986,173
Current-period gross writeoffs |  |
Current fiscal year | 0 | 526
One year before current fiscal year | 223 | 597
Two years before current fiscal year | 113 | 85
Three years before current fiscal year | 250 | 66
Four years before current fiscal year | 0 | 254
Prior | 0 | 13
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 586 | 1,541
Commercial and industrial | Commercial and industrial other | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 63,659 | 178,999
One year before current fiscal year | 164,262 | 111,528
Two years before current fiscal year | 113,700 | 81,883
Three years before current fiscal year | 72,835 | 73,977
Four years before current fiscal year | 76,150 | 37,104
Prior | 148,294 | 126,706
Revolving Loans Amortized Cost Basis | 331,280 | 316,314
Revolving Loans Converted to Term | 5,901 | 8,606
Total Loans | 976,081 | 935,117
Commercial and industrial | Commercial and industrial other | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 9,871
One year before current fiscal year | 112 | 9,447
Two years before current fiscal year | 1,388 | 90
Three years before current fiscal year | 71 | 1,154
Four years before current fiscal year | 0 | 178
Prior | 2,730 | 1,468
Revolving Loans Amortized Cost Basis | 22,048 | 21,037
Revolving Loans Converted to Term | 0 | 0
Total Loans | 26,349 | 43,245
Commercial and industrial | Commercial and industrial other | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 61 | 423
Two years before current fiscal year | 674 | 1,433
Three years before current fiscal year | 1,419 | 0
Four years before current fiscal year | 1,295 | 390
Prior | 930 | 192
Revolving Loans Amortized Cost Basis | 6,458 | 5,032
Revolving Loans Converted to Term | 0 | 341
Total Loans | 10,837 | 7,811
Commercial and industrial | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 4,402 | 11,890
One year before current fiscal year | 9,822 | 9,337
Two years before current fiscal year | 8,107 | 24,659
Three years before current fiscal year | 22,930 | 7,539
Four years before current fiscal year | 6,903 | 1,440
Prior | 4,625 | 3,877
Revolving Loans Amortized Cost Basis | 47,745 | 55,263
Revolving Loans Converted to Term | 0 | 470
Total Loans | 104,534 | 114,475
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Commercial and industrial | Agriculture | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 4,402 | 11,890
One year before current fiscal year | 9,799 | 9,337
Two years before current fiscal year | 8,107 | 24,659
Three years before current fiscal year | 22,930 | 7,539
Four years before current fiscal year | 6,900 | 1,418
Prior | 4,585 | 3,852
Revolving Loans Amortized Cost Basis | 47,679 | 55,263
Revolving Loans Converted to Term | 0 | 470
Total Loans | 104,402 | 114,428
Commercial and industrial | Agriculture | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 23 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 3 | 22
Prior | 19 | 25
Revolving Loans Amortized Cost Basis | 66 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 111 | 47
Commercial and industrial | Agriculture | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 21 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 21 | 0
Commercial real estate | Commercial and industrial other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 65,266 | 416,029
One year before current fiscal year | 427,499 | 320,882
Two years before current fiscal year | 328,546 | 258,420
Three years before current fiscal year | 247,681 | 313,161
Four years before current fiscal year | 299,410 | 377,259
Prior | 1,572,533 | 1,253,800
Revolving Loans Amortized Cost Basis | 19,520 | 20,075
Revolving Loans Converted to Term | 11,815 | 19,216
Total Loans | 2,972,270 | 2,978,842
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 2,000
Prior | 0 | 5,310
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 7,310
Commercial real estate | Commercial and industrial other | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 65,266 | 409,529
One year before current fiscal year | 420,999 | 320,178
Two years before current fiscal year | 327,844 | 256,566
Three years before current fiscal year | 245,834 | 310,051
Four years before current fiscal year | 295,832 | 374,436
Prior | 1,520,790 | 1,204,064
Revolving Loans Amortized Cost Basis | 18,783 | 19,291
Revolving Loans Converted to Term | 11,815 | 19,216
Total Loans | 2,907,163 | 2,913,331
Commercial real estate | Commercial and industrial other | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 6,500
One year before current fiscal year | 6,500 | 305
Two years before current fiscal year | 303 | 927
Three years before current fiscal year | 920 | 1,961
Four years before current fiscal year | 1,459 | 1,362
Prior | 29,853 | 45,932
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 39,035 | 56,987
Commercial real estate | Commercial and industrial other | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 399
Two years before current fiscal year | 399 | 927
Three years before current fiscal year | 927 | 1,149
Four years before current fiscal year | 2,119 | 1,461
Prior | 21,890 | 3,804
Revolving Loans Amortized Cost Basis | 737 | 784
Revolving Loans Converted to Term | 0 | 0
Total Loans | 26,072 | 8,524
Commercial real estate | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 7,375 | 26,485
One year before current fiscal year | 27,881 | 23,114
Two years before current fiscal year | 24,249 | 11,133
Three years before current fiscal year | 11,325 | 41,082
Four years before current fiscal year | 40,488 | 20,087
Prior | 119,205 | 103,877
Revolving Loans Amortized Cost Basis | 5,599 | 4,488
Revolving Loans Converted to Term | 2,043 | 4,026
Total Loans | 238,165 | 234,292
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Commercial real estate | Agriculture | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 7,375 | 26,485
One year before current fiscal year | 27,881 | 23,114
Two years before current fiscal year | 24,249 | 11,133
Three years before current fiscal year | 11,325 | 41,082
Four years before current fiscal year | 40,488 | 20,087
Prior | 118,948 | 103,609
Revolving Loans Amortized Cost Basis | 5,599 | 4,488
Revolving Loans Converted to Term | 2,043 | 4,026
Total Loans | 237,908 | 234,024
Commercial real estate | Agriculture | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 157 | 141
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 157 | 141
Commercial real estate | Agriculture | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 100 | 127
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 100 | 127
Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 13,222
Two years before current fiscal year | 9,000 | 30,274
Three years before current fiscal year | 37,160 | 1,542
Four years before current fiscal year | 18,226 | 15,688
Prior | 15,930 | 349
Revolving Loans Amortized Cost Basis | 384,751 | 362,167
Revolving Loans Converted to Term | 6,311 | 25,659
Total Loans | 471,378 | 448,901
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Commercial real estate | Construction | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 13,222
Two years before current fiscal year | 9,000 | 30,274
Three years before current fiscal year | 37,160 | 1,542
Four years before current fiscal year | 18,226 | 15,688
Prior | 15,930 | 349
Revolving Loans Amortized Cost Basis | 366,998 | 344,568
Revolving Loans Converted to Term | 6,311 | 25,659
Total Loans | 453,625 | 431,302
Commercial real estate | Construction | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 452 | 297
Revolving Loans Converted to Term | 0 | 0
Total Loans | 452 | 297
Commercial real estate | Construction | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 17,301 | 17,302
Revolving Loans Converted to Term | 0 | 0
Total Loans | 17,301 | 17,302
Residential Real Estate | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 396 | 1,613
One year before current fiscal year | 1,537 | 767
Two years before current fiscal year | 744 | 1,448
Three years before current fiscal year | 1,366 | 1,309
Four years before current fiscal year | 1,232 | 795
Prior | 19,250 | 18,691
Revolving Loans Amortized Cost Basis | 204,614 | 201,360
Revolving Loans Converted to Term | 788 | 1,671
Total Loans | 229,927 | 227,654
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Residential Real Estate | Home equity | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 396 | 1,613
One year before current fiscal year | 1,537 | 767
Two years before current fiscal year | 744 | 1,448
Three years before current fiscal year | 1,366 | 1,309
Four years before current fiscal year | 1,232 | 795
Prior | 17,735 | 17,309
Revolving Loans Amortized Cost Basis | 202,873 | 200,118
Revolving Loans Converted to Term | 788 | 1,671
Total Loans | 226,671 | 225,030
Residential Real Estate | Home equity | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 1,515 | 1,382
Revolving Loans Amortized Cost Basis | 1,741 | 1,242
Revolving Loans Converted to Term | 0 | 0
Total Loans | 3,256 | 2,624
Residential Real Estate | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 26,020 | 113,126
One year before current fiscal year | 110,485 | 104,971
Two years before current fiscal year | 100,736 | 121,663
Three years before current fiscal year | 118,478 | 161,664
Four years before current fiscal year | 159,651 | 221,830
Prior | 843,732 | 640,278
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 1,359,102 | 1,363,532
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Residential Real Estate | Mortgages | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 26,020 | 113,023
One year before current fiscal year | 110,382 | 104,677
Two years before current fiscal year | 100,262 | 120,785
Three years before current fiscal year | 117,613 | 160,682
Four years before current fiscal year | 158,819 | 220,793
Prior | 831,884 | 629,641
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 1,344,980 | 1,349,601
Residential Real Estate | Mortgages | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 103
One year before current fiscal year | 103 | 294
Two years before current fiscal year | 474 | 878
Three years before current fiscal year | 865 | 982
Four years before current fiscal year | 832 | 1,037
Prior | 11,848 | 10,637
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 14,122 | 13,931
Consumer and other | Direct |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 15,963 | 34,987
One year before current fiscal year | 20,720 | 11,109
Two years before current fiscal year | 9,867 | 11,209
Three years before current fiscal year | 10,430 | 7,451
Four years before current fiscal year | 6,886 | 6,887
Prior | 17,643 | 12,467
Revolving Loans Amortized Cost Basis | 2,100 | 2,289
Revolving Loans Converted to Term | 0 | 0
Total Loans | 83,609 | 86,399
Current-period gross writeoffs |  |
Current fiscal year | 355 | 2,220
One year before current fiscal year | 15 | 15
Two years before current fiscal year | 0 | 17
Three years before current fiscal year | 5 | 17
Four years before current fiscal year | 5 | 20
Prior | 36 | 55
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 416 | 2,344
Consumer and other | Direct | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 15,963 | 34,987
One year before current fiscal year | 20,715 | 11,109
Two years before current fiscal year | 9,858 | 11,207
Three years before current fiscal year | 10,416 | 7,430
Four years before current fiscal year | 6,872 | 6,887
Prior | 17,629 | 12,427
Revolving Loans Amortized Cost Basis | 2,099 | 2,282
Revolving Loans Converted to Term | 0 | 0
Total Loans | 83,552 | 86,329
Consumer and other | Direct | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 5 | 0
Two years before current fiscal year | 9 | 2
Three years before current fiscal year | 14 | 21
Four years before current fiscal year | 14 | 0
Prior | 14 | 40
Revolving Loans Amortized Cost Basis | 1 | 7
Revolving Loans Converted to Term | 0 | 0
Total Loans | 57 | 70
Consumer and other | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 17
Prior | 58 | 51
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 58 | 68
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 15
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 15
Consumer and other | Indirect | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 17
Prior | 58 | 51
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 58 | 68
Consumer and other | Indirect | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | $ 0 | $ 0

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://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 40 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481628/310-20-40-7 Reference 2: 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 + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 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 + 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, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition 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 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
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=tmp_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tmp_OtherFinancingReceivableMember
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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tmp_AgricultureLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=tmp_ConsumerAndOtherPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tmp_DirectLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tmp_IndirectLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |