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Loan and Lease Financings (Details 3) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Amortized cost of collateral-dependent loans and leases
Allowance for loan and lease losses	$ 161,430	$ 163,484	$ 155,540	$ 152,324	$ 150,067	$ 147,552
Real estate
Amortized cost of collateral-dependent loans and leases
Loans and leases	714		1,055
Real estate | Commercial and agricultural
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
Real estate | Auto and light truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
Real estate | Medium and heavy duty truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	0
Real estate | Construction equipment
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
Real estate | Commercial real estate
Amortized cost of collateral-dependent loans and leases
Loans and leases	714		1,055
Equipment
Amortized cost of collateral-dependent loans and leases
Loans and leases	53,831		18,343
Equipment | Commercial and agricultural
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
Equipment | Auto and light truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	39,073		939
Equipment | Medium and heavy duty truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	1,606
Equipment | Construction equipment
Amortized cost of collateral-dependent loans and leases
Loans and leases	13,152		17,404
Equipment | Commercial real estate
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
General business assets
Amortized cost of collateral-dependent loans and leases
Loans and leases	1,320		4,102
General business assets | Commercial and agricultural
Amortized cost of collateral-dependent loans and leases
Loans and leases	1,320		4,102
General business assets | Auto and light truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
General business assets | Medium and heavy duty truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	0
General business assets | Construction equipment
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
General business assets | Commercial real estate
Amortized cost of collateral-dependent loans and leases
Loans and leases	0		0
Collateral Pledged
Amortized cost of collateral-dependent loans and leases
Loans and leases	55,865		23,500
Allowance for loan and lease losses	1,158		209
Collateral Pledged | Commercial and agricultural
Amortized cost of collateral-dependent loans and leases
Loans and leases	1,320		4,102
Allowance for loan and lease losses	0		209
Collateral Pledged | Auto and light truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	39,073		939
Allowance for loan and lease losses	823		0
Collateral Pledged | Medium and heavy duty truck
Amortized cost of collateral-dependent loans and leases
Loans and leases	1,606
Allowance for loan and lease losses	296
Collateral Pledged | Construction equipment
Amortized cost of collateral-dependent loans and leases
Loans and leases	13,152		17,404
Allowance for loan and lease losses	39		0
Collateral Pledged | Commercial real estate
Amortized cost of collateral-dependent loans and leases
Loans and leases	714		1,055
Allowance for loan and lease losses	$ 0		$ 0

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- Definition

Schedule of Financing Receivable By Collateral Type [Line Items]

+ References

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- Definition

Amount excluding accrued interest, of allowance for credit loss on 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

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- Definition

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

+ References

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

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