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Allowance for Loan Losses - Loans by Credit Quality Indicators - Performing and Non-Performing (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Allowance for loan losses
Loans	$ 1,410,060	$ 1,352,406
Consumer Finance
Allowance for loan losses
Loans	368,194	312,252
Consumer Finance | Performing
Allowance for loan losses
Loans	367,814	311,850
Consumer Finance | Non-performing
Allowance for loan losses
Loans	380	402
Consumer Finance | Automobiles
Allowance for loan losses
Loans	322,067	272,706
Consumer Finance | Automobiles | Performing
Allowance for loan losses
Loans	321,687	272,304
Consumer Finance | Automobiles | Non-performing
Allowance for loan losses
Loans	380	402
Consumer Finance | Marine and recreational vehicles
Allowance for loan losses
Loans	46,127	39,546
Consumer Finance | Marine and recreational vehicles | Performing
Allowance for loan losses
Loans	$ 46,127	$ 39,546

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

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