Investment Securities, Pledged Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Pledged Securities [Abstract]
Carrying amount of securities	$ 968,431	$ 997,817
Asset Pledged as Collateral [Member] \| Public Deposits, Federal Home Loan Bank ("FHLB") Borrowings, and Other Government Agency Deposits [Member]
Pledged Securities [Abstract]
Carrying amount of securities	$ 498,000	$ 479,000

Sum of the carrying amounts as of the balance sheet date of all investments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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