Derivatives - Schedule of Derivative Instrument Gain (Loss) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Gain (loss) on derivative not designated as hedging	$ (4,918)	$ (1,092)
Retail interest rate contracts \| Mortgage banking income
Derivative [Line Items]
Gain (loss) on derivative not designated as hedging	(7,980)	(922)
Interest rate lock commitments \| Mortgage banking income
Derivative [Line Items]
Gain (loss) on derivative not designated as hedging	$ 3,062	$ (170)

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration