Derivatives and Hedging Activities (Customer Related Derivative Positions - Not Designated as Hedges) (Details) - Not Designated as Hedging Instrument $ in Thousands		Mar. 31, 2022 USD ($) position	Dec. 31, 2021 USD ($) position
Receive fixed, pay variable | Loan level swaps
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	295	296
Less than 1 year		$ 63,981	$ 37,589
Less than 2 years		108,216	139,844
Less than 3 years		177,574	123,507
Less than 4 years		244,445	260,953
Thereafter		1,023,964	1,060,276
Derivative, Notional Amount		1,618,180	1,622,169
Fair Value		$ (26,666)	$ 55,984
Pay fixed, receive variable | Loan level swaps
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	295	296
Less than 1 year		$ 63,981	$ 37,589
Less than 2 years		108,216	139,844
Less than 3 years		177,574	123,507
Less than 4 years		244,445	260,953
Thereafter		1,023,964	1,060,276
Derivative, Notional Amount		1,618,180	1,622,169
Fair Value		$ 26,666	$ (55,982)
Buys foreign currency, sells U.S. currency | Foreign exchange contracts
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	44	52
Less than 1 year		$ 126,627	$ 149,588
Less than 2 years		2,535	8,784
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		0	0
Derivative, Notional Amount		129,162	158,372
Fair Value		$ (5,667)	$ 5,734
Buys U.S. currency, sells foreign currency | Foreign exchange contracts
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	44	52
Less than 1 year		$ 126,627	$ 149,588
Less than 2 years		2,535	8,784
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		0	0
Derivative, Notional Amount		129,162	158,372
Fair Value		$ 5,739	$ (5,734)
Risk Participated Out | Risk Participation Agreement
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position		11	11
Less than 1 year		$ 0	$ 0
Less than 2 years		2,625	2,635
Less than 3 years		24,538	7,138
Less than 4 years		0	24,539
Thereafter		68,601	68,408
Derivative, Notional Amount		95,764	102,720
Fair Value		$ 215	$ 279
Risk Participated In | Risk Participation Agreement
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position		8	7
Less than 1 year		$ 29,797	$ 29,972
Less than 2 years		28,021	28,235
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		21,463	8,339
Derivative, Notional Amount		79,281	66,546
Fair Value		$ (54)	$ (55)

[1] The Company may enter into one dealer swap agreement which offsets multiple commercial borrower swap agreements.