Loans and Allowances for Credit Losses, Nonaccrual (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	$ 46,725	$ 145,469
Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	46,725	145,469
Financing Receivable, Nonaccrual, No Allowance	46,449	102,380
Financing receivable, Nonaccrual, With Allowance	276	43,089
Financing Receivable, Nonaccrual, Related Allowance	276	2,692
Commercial [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	14,647	110,131
Commercial [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	14,647	110,131
Financing Receivable, Nonaccrual, No Allowance	14,371	67,042
Financing receivable, Nonaccrual, With Allowance	276	43,089
Financing Receivable, Nonaccrual, Related Allowance	276	2,692
Commercial [Member] \| Healthcare [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	13,717	81,529
Financing Receivable, Nonaccrual, No Allowance	13,717	40,372
Financing receivable, Nonaccrual, With Allowance	0	41,157
Financing Receivable, Nonaccrual, Related Allowance	0	1,478
Commercial [Member] \| Energy [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	49	17,843
Financing Receivable, Nonaccrual, No Allowance	49	17,843
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Commercial [Member] \| Services [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	767	3,616
Financing Receivable, Nonaccrual, No Allowance	491	1,684
Financing receivable, Nonaccrual, With Allowance	276	1,932
Financing Receivable, Nonaccrual, Related Allowance	276	1,214
Commercial [Member] \| General business [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	114	7,143
Financing Receivable, Nonaccrual, No Allowance	114	7,143
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Commercial real estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	9,905	7,320
Commercial real estate [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	9,905	7,320
Financing Receivable, Nonaccrual, No Allowance	9,905	7,320
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Loans to individuals [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	22,173	28,018
Loans to individuals [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	22,173	28,018
Financing Receivable, Nonaccrual, No Allowance	22,173	28,018
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Loans to individuals [Member] \| Residential mortgage [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	15,261	18,056
Financing Receivable, Nonaccrual, No Allowance	15,261	18,056
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Loans to individuals [Member] \| Personal [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	109	253
Financing Receivable, Nonaccrual, No Allowance	109	253
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
US Government Agency Insured Loans \| Loans to individuals [Member] \| Residential mortgage [Member] \| Nonaccrual [Member] \| Nonaccrual
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	6,803	9,709
Financing Receivable, Nonaccrual, No Allowance	6,803	9,709
Financing receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	$ 0	$ 0

Financing Receivable, Nonaccrual, Related Allowance

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Financing receivable, nonaccrual, with allowance

+ References

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. 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 16
-Subparagraph (d)
-Publisher FASB
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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/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
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-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
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