Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Goodwill and intangible assets - Goodwill Activity (Details) - USD ($) $ in Thousands			12 Months Ended
	Aug. 15, 2020	Feb. 14, 2020	Dec. 31, 2020
Goodwill
Beginning Balance			$ 169,051
Ending Balance			242,561
Farmers National
Goodwill
Addition from acquisition		$ 6,319	6,319
Franklin Financial Network, Inc.
Goodwill
Addition from acquisition	$ 67,191		$ 67,191