Repurchase Agreements and Other Borrowings - Schedule of Securities Financing Transactions (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets Sold Under Agreements To Repurchase [Line Items]
Securities pledged to Repurchase Agreements	$ 170,345	$ 208,109
U.S. Treasury Securities and Obligations of U.S. Government Corporations & Agencies
Assets Sold Under Agreements To Repurchase [Line Items]
Securities pledged to Repurchase Agreements	17,251	77,333
Obligations of States and Political Subdivisions
Assets Sold Under Agreements To Repurchase [Line Items]
Securities pledged to Repurchase Agreements	0	2,375
Mortgage-backed Securities: GSE Residential
Assets Sold Under Agreements To Repurchase [Line Items]
Securities pledged to Repurchase Agreements	$ 153,094	$ 128,401