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Premises and Equipment, Net - Premises and Equipment, Net (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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Premises and Equipment, Net, by Type [Abstract] |  |
Total cost of premises and equipment | $ 532,480 | $ 533,344
Less accumulated depreciation and amortization | 309,990 | 302,201
Premises and equipment, net | 222,490 | 231,143
Finance lease right-of-use assets | 2,847 | 3,299
Assets held for sale | 321 | 968
Total premises and equipment, net | 225,658 | 235,410
Land [Member] |  |
Premises and Equipment, Net, by Type [Abstract] |  |
Total cost of premises and equipment | 55,787 | 56,610
Building and Leasehold Improvements [Member] |  |
Premises and Equipment, Net, by Type [Abstract] |  |
Total cost of premises and equipment | 249,088 | 249,405
Furniture and Equipment [Member] |  |
Premises and Equipment, Net, by Type [Abstract] |  |
Total cost of premises and equipment | $ 227,605 | $ 227,329

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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