Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Cash and cash equivalents, Carrying Amount	$ 621,581	$ 670,528	$ 232,139	$ 203,954
Investment securities, Carrying Amount	507,047	357,726
Loans, net, Carrying Amount	859,849	879,732
Accrued interest receivable, Carrying Amount	6,802	6,850
Assets, Carrying Amount	1,995,279	1,914,836
Cash and cash equivalents, Fair Value	621,581	670,528
Investment securities, Fair Value	507,047	357,726
Loans, net, Fair Value	861,911	883,461
Accrued interest receivable, Fair Value	6,802	6,850
Assets, Fair Value	1,997,341	1,918,565
Deposits, Carrying Amount	1,015,943	1,050,856
Accounts and drafts payable, Carrying Amount	939,570	835,386
Accrued interest payable, Carrying Amount	58	38
Liabilities, Carrying Amount	1,955,571	1,886,280
Deposits, Fair Value	1,015,943	1,050,856
Accounts and drafts payable, Fair Value	939,570	835,386
Accrued interest payable, Fair Value	58	38
Liabilities, Fair Value	$ 1,955,571	$ 1,886,280