Regulatory Matters - Narrative (Details)	12 Months Ended
Dec. 31, 2019
Banking And Thrift [Abstract]
Minimum common equity tier 1 ratio	4.50%
Minimum tier 1 risk-based capital ratio	6.00%
Minimum total risk-based capital ratio	8.00%
Minimum leverage tier 1 capital ratio	4.00%
Annual phase in percentage of capital conservation buffer	0.625%
Additional percentage in annual phase percentage of capital conversion buffer	0.625%
Final phase percentage of capital conversion buffer	2.50%
Capital conservation buffer phase in start date	Jan. 01, 2016
Capital conservation buffer phase in end date	Jan. 01, 2019

Additional percentage in annual phase percentage of capital conversion buffer.

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Annual phase in percentage of capital conservation buffer.

+ References

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Capital conservation buffer phase in end date.

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Capital conservation buffer phase in start date.

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Final phase percentage of capital conversion buffer.

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- Definition

Tier one common equity required for capital adequacy to risk weighted assets.

+ References

No definition available.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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