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Goodwill and other intangible assets - Components of other intangible assets subject to amortization (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Gross amount	$ 39,487	$ 39,695
Finite Lived Intangible Assets Accumulated Amortization	25,211	23,393
Finite-Lived Intangible Assets, Net	14,276	16,302
Core deposits
Finite-Lived Intangible Assets
Core deposits - Gross	12,810	12,810
Finite Lived Intangible Assets Accumulated Amortization	8,113	7,473
Finite-Lived Intangible Assets, Net	4,697	5,337
Other customer relationship
Finite-Lived Intangible Assets
Customer relationships - Gross	26,677	26,397
Finite Lived Intangible Assets Accumulated Amortization	17,098	15,684
Finite-Lived Intangible Assets, Net	$ 9,579	10,713
Trademarks
Finite-Lived Intangible Assets
Gross amount		488
Finite Lived Intangible Assets Accumulated Amortization		236
Finite-Lived Intangible Assets, Net		$ 252

X

- Definition

Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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