Repurchase Agreements (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		$ 237,984	$ 245,868
Certificates of Deposit, at Carrying Value		1,000	923
Retail [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1],[2]	237,984	245,868
Retail [Member] | Obligations of states and political subdivisions
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1],[2]	1,361	1,455
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1],[2]	117,654	125,590
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1],[2]	$ 118,969	$ 118,823

[1] (1) Presented within short-term borrowings on the consolidated statements of condition.

[2] (2)All customer repurchase agreements mature continuously or overnight for the dates indicated.