Revenue Recognition (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]
Non-interest Income (in-scope of Topic 606)	$ 9,167	$ 9,291	$ 27,758	$ 27,186
TOTAL NON-INTEREST INCOME	13,279	12,056	39,783	34,223
Core Banking
Disaggregation of Revenue [Line Items]
Non-interest Income (out-of-scope of Topic 606)	4,112	2,765	12,025	7,037
Trust and Investment Product Fees
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,957	1,885	5,855	5,365
Trust and Investment Product Fees | Trust and Investment Advisory Services
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,957	1,885	5,855	5,365
Service Charges on Deposit Accounts
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,773	2,395	5,375	6,319
Service Charges on Deposit Accounts | Core Banking | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,773	2,395	5,375	6,319
Insurance Revenues
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,989	1,883	7,048	7,017
Insurance Revenues | Insurance | Transferred over Time
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	1,989	1,883	7,048	7,017
Interchange Fee Income
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	2,795	2,538	7,753	6,965
Interchange Fee Income | Core Banking | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	2,795	2,538	7,753	6,965
Other Operating Income | Core Banking | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Non-interest Income (in-scope of Topic 606)	$ 653	$ 590	$ 1,727	$ 1,520