Securities Textuals (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Securities (Textuals) [Abstract]
Available-for-sale Securities Pledged as Collateral	$ 150.3	$ 147.8
Cost-method Investments, Aggregate Carrying Amount	$ 1.4	$ 1.4

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

Name:	us-gaap_DebtSecuritiesAvailableForSaleRestricted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant