Disclosure about Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial assets:
Investment securities - available for sale	$ 1,174,964	$ 1,005,984
Investment securities - trading	8,623	8,621
Investment securities – held to maturity	15,186	12,661
Carrying Amount
Financial assets:
Investment securities - available for sale	1,174,964	1,005,984
Investment securities - trading	8,623	8,621
Total financial assets	5,038,076	4,857,148
Financial liabilities:
Total financial liabilities	4,768,821	4,606,085
Carrying Amount | Level 1
Financial assets:
Cash and cash equivalents	96,313	53,931
Carrying Amount | Level 2
Financial assets:
Investment securities – held to maturity	14,759	12,577
Loans held for sale	6,000	4,249
Financial liabilities:
Deposits	4,376,254	3,842,245
Short-term borrowings	72,161	493,219
Long-term FHLB advances	39,906	52,269
Subordinated notes	98,883	98,705
Junior subordinated debentures	21,935	21,753
Carrying Amount | Level 3
Financial assets:
Net portfolio loans and leases	3,574,702	3,666,711
Mortgage servicing rights	2,626	4,450
Other assets	45,847	52,908
Financial liabilities:
Other liabilities	45,734	50,251
Carrying Amount | Interest rate swaps | Level 2
Financial assets:
Derivative assets	113,848	47,627
Financial liabilities:
Derivative liabilities	113,848	47,627
Carrying Amount | FX Forwards | Level 2
Financial assets:
Derivative assets	52	0
Financial liabilities:
Derivative liabilities	70	0
Carrying Amount | RPAs purchased | Level 2
Financial assets:
Derivative assets	342	90
Carrying Amount | RPAs sold | Level 2
Financial liabilities:
Derivative liabilities	30	16
Fair Value
Financial assets:
Investment securities - available for sale	1,174,964	1,005,984
Investment securities - trading	8,623	8,621
Total financial assets	4,953,129	4,787,177
Financial liabilities:
Total financial liabilities	4,769,852	4,608,358
Fair Value | Level 1
Financial assets:
Cash and cash equivalents	96,313	53,931
Fair Value | Level 2
Financial assets:
Investment securities – held to maturity	15,186	12,661
Loans held for sale	6,000	4,249
Financial liabilities:
Deposits	4,379,021	3,842,014
Short-term borrowings	72,161	493,219
Long-term FHLB advances	40,441	52,380
Subordinated notes	90,735	97,199
Junior subordinated debentures	27,812	25,652
Fair Value | Level 3
Financial assets:
Net portfolio loans and leases	3,489,322	3,596,268
Mortgage servicing rights	2,632	4,838
Other assets	45,847	52,908
Financial liabilities:
Other liabilities	45,734	50,251
Fair Value | Interest rate swaps | Level 2
Financial assets:
Derivative assets	113,848	47,627
Financial liabilities:
Derivative liabilities	113,848	47,627
Fair Value | FX Forwards | Level 2
Financial assets:
Derivative assets	52	0
Financial liabilities:
Derivative liabilities	70	0
Fair Value | RPAs purchased | Level 2
Financial assets:
Derivative assets	342	90
Fair Value | RPAs sold | Level 2
Financial liabilities:
Derivative liabilities	$ 30	$ 16