Investment Securities, Pledged Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Pledged Securities [Abstract]
Carrying amount of securities	$ 1,127,632	$ 1,007,506
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	$ 490,000	$ 426,000

Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

No definition available.

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