Revenue Recognition (Summary of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Percentage of total revenue excluded from adoption of 606	85.00%	85.80%	84.40%	87.00%
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 9,313	$ 11,010	$ 19,750	$ 19,586
Total out-of-scope non-interest income	5,052	4,824	11,606	8,436
Total non-interest income	14,365	15,834	31,356	28,022
Wealth Management Fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5,977	6,243	12,228	10,322
Banking service charges and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	3,336	4,767	7,522	9,264
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2,071	3,278	5,047	6,467
Debit card and ATM fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 1,265	$ 1,489	$ 2,475	$ 2,797