Loans and Allowance for Credit Losses (Policies)	12 Months Ended
Dec. 31, 2020
Receivables [Abstract]
Allowance/Provision For Loan Losses	Allowance for loan lossesIn the table below is a summary of the activity in the allowance for loan losses during 2019, calculated in accordance with the incurred loss methodology applicable to the Company prior to its adoption of CECL on January 1, 2020. The allowance for loan losses under the incurred loss method estimated probable loan losses inherent in the portfolio as of the balance sheet date, and using this methodology, groups of similar loans were evaluated collectively for impairment and certain specific loans were evaluated for impairment individually. The Company’s estimate of the allowance under the incurred loss method was based on various judgments and assumptions made by management and was influenced by several qualitative factors which included historical loan loss experience by loan type, loss emergence periods, trends in delinquencies, collateral valuation, current regional and national economic factors, current loan portfolio composition and characteristics, portfolio risk ratings, and levels of non-performing assets.

Disclosure of accounting policy for estimating the allowance for losses on loans and lease receivables. The disclosure may include (a) how the entity determines each element of the allowance, (b) which loans are evaluated individually and which loans are evaluated as a group, (c) how the entity determines both the allocated and unallocated portions of the allowance, (d) how the entity determines the loss factors applied to graded loans in order to develop a general allowance, and (e) what self-correcting mechanism the entity uses to reduce differences between estimated and actual losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5144-111524

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