Securities (Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	$ 159,936
Available for sale debt securities maturities 1-5 years amortized cost	383,094
Available for sale debt securities maturities 5-10 years amortized cost	403,300
Available for sale debt securities maturities after 10 years amortized cost	105,470
Available for sale debt securities, amortized cost	1,051,800	$ 881,570
Available for sale debt securities maturities within 1 year fair value	159,288
Available for sale debt securities maturities 1-5 years fair value	381,503
Available for sale debt securities maturities 5-10 years fair value	397,503
Available for sale debt securities maturities after 10 years fair value	104,565
Available for sale debt securities, fair value	1,042,859	894,571
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	200,953	131,186
Available for sale debt securities, fair value	196,454	131,669
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	828,319	725,890
Available for sale debt securities, fair value	824,962	740,305
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	9,373	13,341
Available for sale debt securities, fair value	9,138	12,669
Corporate bonds [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities, amortized cost	13,155	11,153
Available for sale debt securities, fair value	$ 12,305	$ 9,928

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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