Equity - Capital Purchase Program, Additional Information (Details) shares in Millions	12 Months Ended
Dec. 31, 2019 $ / shares shares
Minimum [Member]
Class of Warrant or Right [Line Items]
Warrant exercise price (in USD per share)	$ 8.750
Maximum
Class of Warrant or Right [Line Items]
Warrant exercise price (in USD per share)	$ 8.836
Warrant
Class of Warrant or Right [Line Items]
Warrants exercised (in shares) \| shares	1.9

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant