Securities (Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities within 1 year amortized cost	$ 86,697
Available for sale debt securities maturities 1-5 years amortized cost	514,848
Available for sale debt securities maturities 5-10 years amortized cost	265,420
Available for sale debt securities maturities after 10 years amortized cost	270,092
Available for sale debt securities maturities total amortized cost	1,137,057	$ 1,152,629
Available for sale debt securities maturities within 1 year fair value	72,753
Available for sale debt securities maturities 1-5 years fair value	445,618
Available for sale debt securities maturities 5-10 years fair value	224,319
Available for sale debt securities maturities after 10 years fair value	227,370
Available for sale debt securities, fair value	$ 970,060	$ 1,000,380

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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