Investment Securities (Amortized Cost And Fair Value Of Investment Securities By Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available-for-sale, Amortized cost [Abstract]
Due before one year	$ 20,665
Due after one year through five years	142,703
Due after five years through ten years	220,456
Due after ten years	536,697
Total	920,521	$ 945,212
Available-for-sale, Fair value [Abstract]
Due before one year	20,797
Due after one year through five years	142,324
Due after five years through ten years	218,540
Due after ten years	525,677
Total investment securities, available-for-sale	$ 907,338	$ 953,709

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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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