Derivatives and Hedging Activities (FV of Derivative Financial Instruments and Classification on Balance Sheet) (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative Liability, Fair Value, Amount Offset Against Collateral		$ 7,090	$ 6,713
Derivative, Collateral, Obligation to Return Cash		0	0
Derivative Asset		92,185	187,422
Derivative Liability		69,246	117,959
Derivative Asset, Fair Value, Amount Offset Against Collateral		63,867	138,636
Interest Receivable		43,700	36,000
Derivative, Collateral, Obligation to Return Securities	[1]	28,318	48,786
Derivative, Collateral, Right to Reclaim Cash		33,838	62,460
Derivative, Collateral, Right to Reclaim Securities	[1]	28,318	48,786
Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value		75,961	138,613
Total		97,912	187,399
Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value		74,983	132,722
Total		76,015	134,064
Interest rate derivatives
Fair value of derivative financial instruments as well as their classification on the balance sheet
Interest Receivable		1,200	1,200
Interest rate derivatives | Derivatives designated as hedges: [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Interest Rate Derivative Assets, at Fair Value	[2],[3]	21,951	48,786
Interest rate derivatives | Derivatives designated as hedges: [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Interest rate derivatives	[4],[5]	1,032	1,342
Loan level swaps
Fair value of derivative financial instruments as well as their classification on the balance sheet
Interest Receivable		1,500	2,000
Loan level swaps | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total	[2],[3]	68,726	127,228
Loan level swaps | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total	[4],[5]	68,724	127,218
Foreign exchange contracts | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total		6,147	4,359	[2]
Foreign exchange contracts | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total		6,147	4,349	[4]
Mortgage Derivatives | Derivatives not designated as hedges: [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Forward sale hedge commitments	[2]	56	0
Derivative Instrument Not Designated as a Hedge, Forward Sale Hedge Commitment, Asset at Fair Value	[2]	0	0
Interest rate lock commitments	[2]	753	6,513
Mortgage Derivatives | Derivatives not designated as hedges: [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Interest rate lock commitments	[4]	0	0
Forward sale hedge commitments	[4]	0	1
Derivative Instrument Not Designated as a Hedge, Forward Sale Hedge Commitment, Liability at Fair Value	[4]	57	1,035
CME [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative, Collateral, Obligation to Return Cash	[6]	(5,727)	23
Derivative, Collateral, Right to Reclaim Cash	[6]	6,769	16,105
Risk Participation Agreement [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Credit Risk Derivative Assets, at Fair Value	[2]	279	513
Risk Participation Agreement [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Credit Risk Derivative Liabilities, at Fair Value	[4]	55	119
Derivative Financial Instruments, Assets [Member] | Fair Value, Recurring [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total		97,912	187,399
Derivative Financial Instruments, Assets [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Total		$ 97,912	$ 187,399

[1] Reflects offsetting derivative positions with the same counterparty that are not netted on the balance sheet.

[2] All asset derivatives are located in other assets on the balance sheet

[3] Approximately $1.2 million and $1.5 million of accrued interest receivable is included in the fair value of the interest rate and loan level asset derivatives, respectively, at December 31, 2021, in comparison to accrued interest receivable of approximately and $1.2 million and $2.0 million, respectively, at December 31, 2020.

[4] All liability derivatives are located in other liabilities on the balance sheet

[5] Approximately $5,000 and $1.5 million of accrued interest payable is included in the fair value of interest rate and loan level derivative liabilities as of December 31, 2021, in comparison to accrued interest payable of approximately $81,000 and $2.0 million, respectively, at December 31, 2020.

[6] Netting adjustments represent the amounts recorded to convert derivative assets and liabilities cleared through CME from a gross basis to a net basis, inclusive of the variation margin payments, in accordance with applicable accounting guidance. As displayed in the table above, derivatives that cleared through the CME were either in a net asset position or a net liability position as of December 31, 2021 and 2020.