Securities (Proceeds from Gross Gains on and Gross Losses on Sale of Securities) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Investments Debt And Equity Securities [Abstract]
Proceeds	$ 124,122
Gross gains	1,082
Gross losses	$ 970

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

No definition available.

Name:	us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration