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Business Combination - Merger related costs (Details) - USD ($) $ in Thousands	3 Months Ended		24 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Business Combination
Merger related costs	$ 0	$ 590	$ 2,100
Merger related costs, after income taxes			$ 1,780
Peoples Bankshares, Incorporated (Peoples)
Business Combination
Merger related costs		957
Merger related costs, after income taxes		$ 785

X

- Definition

This element represents acquisition-related costs, after income taxes, incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

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- Definition

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

No definition available.

+ Details

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X

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460

+ Details

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- Details

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Namespace Prefix:
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