Securities (Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities within 1 year amortized cost	$ 139,387
Available for sale debt securities maturities 1-5 years amortized cost	371,924
Available for sale debt securities maturities 5-10 years amortized cost	420,816
Available for sale debt securities maturities after 10 years amortized cost	150,076
Available for sale debt securities maturities total amortized cost	1,082,203	$ 1,051,800
Available for sale debt securities maturities within 1 year fair value	130,147
Available for sale debt securities maturities 1-5 years fair value	347,322
Available for sale debt securities maturities 5-10 years fair value	390,659
Available for sale debt securities maturities after 10 years fair value	140,056
Available for sale debt securities, fair value	$ 1,008,184	$ 1,042,859

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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