Recent Accounting Pronouncements (Narrative) (Details) - USD ($)	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Impact of ASC 326 Adoption	$ (2,335,000)
Non-governmental issues exceeding 10% shareholders equity threshold	0		$ 0
Credit-related investment impairment losses	0	$ 0
Receivables Acquired with Deteriorated Credit Quality [Domain]
Impact of ASC 326 Adoption	$ 2,700,000

This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which a previous OTTI was recognized and the investor does not intend to sell the debt security and it is not more likely than not that the investor will be required to sell the debt security before recovery of its amortized cost basis.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL6284393-111563

Name:	us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration