Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
TOTAL NONINTEREST INCOME	$ 9,467	$ 7,576	$ 26,473	$ 21,348
Service Charges on Deposit Accounts
Disaggregation Of Revenue [Line Items]
Noninterest income	904	1,208	2,752	3,375
Debit Card and EFT Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,048	935	2,866	2,600
Trust Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,973	1,905	5,682	5,584
Insurance Agency Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	784	681	2,348	2,223
Retirement Plan Consulting Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	341	338	1,129	1,146
Investment Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	353	384	1,080	971
Operating Segments
Disaggregation Of Revenue [Line Items]
TOTAL NONINTEREST INCOME	9,467	7,576	26,473	21,348
Operating Segments | Service Charges on Deposit Accounts
Disaggregation Of Revenue [Line Items]
Noninterest income	904	1,208	2,752	3,375
Operating Segments | Debit Card and EFT Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,048	935	2,866	2,600
Operating Segments | Trust Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,973	1,905	5,682	5,584
Operating Segments | Insurance Agency Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	784	681	2,348	2,223
Operating Segments | Retirement Plan Consulting Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	341	338	1,129	1,146
Operating Segments | Investment Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	353	384	1,080	971
Operating Segments | Other
Disaggregation Of Revenue [Line Items]
Noninterest income	4,064	2,125	10,616	5,449
Operating Segments | Trust Segment
Disaggregation Of Revenue [Line Items]
TOTAL NONINTEREST INCOME	2,314	2,243	6,811	6,730
Operating Segments | Trust Segment | Service Charges on Deposit Accounts
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Trust Segment | Debit Card and EFT Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Trust Segment | Trust Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,973	1,905	5,682	5,584
Operating Segments | Trust Segment | Insurance Agency Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Trust Segment | Retirement Plan Consulting Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	341	338	1,129	1,146
Operating Segments | Trust Segment | Investment Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Trust Segment | Other
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Bank Segment
Disaggregation Of Revenue [Line Items]
TOTAL NONINTEREST INCOME	7,153	5,333	19,662	14,618
Operating Segments | Bank Segment | Service Charges on Deposit Accounts
Disaggregation Of Revenue [Line Items]
Noninterest income	904	1,208	2,752	3,375
Operating Segments | Bank Segment | Debit Card and EFT Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	1,048	935	2,866	2,600
Operating Segments | Bank Segment | Trust Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Bank Segment | Insurance Agency Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	784	681	2,348	2,223
Operating Segments | Bank Segment | Retirement Plan Consulting Fees
Disaggregation Of Revenue [Line Items]
Noninterest income	0	0	0	0
Operating Segments | Bank Segment | Investment Commissions
Disaggregation Of Revenue [Line Items]
Noninterest income	353	384	1,080	971
Operating Segments | Bank Segment | Other
Disaggregation Of Revenue [Line Items]
Noninterest income	$ 4,064	$ 2,125	$ 10,616	$ 5,449