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Regulatory Capital Requirements - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Proceeds from Dividends Received		$ 0
Bank | Trust Preferred Securities Interest and Preferred Dividends
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Proceeds from Dividends Received	$ 13,500,000	$ 2,900,000
Federal Deposit Corporation And Federal Reserve Board
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital conservation buffer above the minimum capital requirements	6.43%
Federal Deposit Corporation And Federal Reserve Board | Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital conservation buffer above the minimum capital requirements	5.87%
Federal Deposit Corporation And Federal Reserve Board | Rules Phased in beginning January 2016
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional capital conservation buffer requirement subsequent years ratio	2.50%

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- Definition

The additional capital conservation buffer ratio requirement in subsequent years.

+ References

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- Definition

Capital conservation buffer above the minimum capital requirements.

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- Definition

Dividends received on equity and other investments during the current period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 16
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3337-108585

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