Derivatives and Hedging Activities (Amounts Subject to Master Netting Agreement) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Asset derivatives
Assets, Gross Amounts Recognized	$ 60,648	$ 22,488
Assets, Gross Amounts Offset in the Statement of Financial Position	0	0
Assets, Net Amounts Presented in the Statement of Financial Position	60,648	22,488
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	11,900	50
Assets, Net Amount	48,748	22,438
Liability derivatives
Liabilities, Gross Amounts Recognized	59,701	22,220
Liabilities, Gross Amounts Offset in the Statement of Financial Position	0	0
Liabilities, Net Amounts Presented in the Statement of Financial Position	59,701	22,220
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	86,521	5,877
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Liabilities, Net Amount	(26,820)	16,343
Loan level derivatives
Asset derivatives
Assets, Gross Amounts Recognized	59,365	22,013
Assets, Gross Amounts Offset in the Statement of Financial Position	0	0
Assets, Net Amounts Presented in the Statement of Financial Position	59,365	22,013
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	11,900	50
Assets, Net Amount	47,465	21,963
Liability derivatives
Liabilities, Gross Amounts Recognized	59,365	22,013
Liabilities, Gross Amounts Offset in the Statement of Financial Position	0	0
Liabilities, Net Amounts Presented in the Statement of Financial Position	59,365	22,013
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	86,521	5,877
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Liabilities, Net Amount	(27,156)	16,136
Risk participation-out agreements
Asset derivatives
Assets, Gross Amounts Recognized	1,229	344
Assets, Gross Amounts Offset in the Statement of Financial Position	0	0
Assets, Net Amounts Presented in the Statement of Financial Position	1,229	344
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Assets, Net Amount	1,229	344
Risk participation-in agreements
Liability derivatives
Liabilities, Gross Amounts Recognized	283	84
Liabilities, Gross Amounts Offset in the Statement of Financial Position	0	0
Liabilities, Net Amounts Presented in the Statement of Financial Position	283	84
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Liabilities, Net Amount	283	84
Foreign exchange contracts
Asset derivatives
Assets, Gross Amounts Recognized	54	131
Assets, Gross Amounts Offset in the Statement of Financial Position	0	0
Assets, Net Amounts Presented in the Statement of Financial Position	54	131
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Assets, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Assets, Net Amount	54	131
Liability derivatives
Liabilities, Gross Amounts Recognized	53	123
Liabilities, Gross Amounts Offset in the Statement of Financial Position	0	0
Liabilities, Net Amounts Presented in the Statement of Financial Position	53	123
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Pledged	0	0
Liabilities, Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Pledged	0	0
Liabilities, Net Amount	$ 53	$ 123