Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	$ 125,616	$ 118,433	$ 130,804
Wealth management fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	40,409	36,806	37,072
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	34,685	35,081	44,915
Debit card and ATM fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	20,739	20,178	21,652
Investment product fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	24,639	21,614	21,785
Merchant processing fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	3,733	3,150	3,105
Gain (loss) on other real estate owned
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	298	240	254
Safe deposit box fees
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	999	957	1,206
Insurance premiums and commissions
Disaggregation of Revenue [Line Items]
Noninterest income within scope of Topic 606	$ 114	$ 407	$ 815