Derivatives (Effect of Cash Flow Hedge Accounting on the Consolidated Statements of Income) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income (expense)	[1],[2]	$ (17)	$ (1)	$ (43)	$ 21
Interest Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income (expense)		(17)	(1)	(43)	21
Total		$ (17)	$ (1)	$ (43)	$ 21

[1] Amounts are included in interest expense on short-term borrowings and repurchase agreements on the Consolidated Statements of Income.

[2] Income tax amounts are included in the provision for income taxes on the Consolidated Statements of Income.