Available-For-Sale And Held-To-Maturity Securities (Schedule Of Gross Unrealized Losses And The Estimated Fair Value By Length Of Time In A Loss Position) (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	$ (4,841)
Available-for-sale Securities, Estimated fair value, Less than 12 months	324,327
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(1,269)
Available-for-sale Securities, Estimated fair value, 12 months or more	145,511
Available-for-sale Securities, Gross unrealized losses, Total	(6,110)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	469,838
Agency Mortgage-Backed Securities [Member] \| Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(23)
Available-for-sale Securities, Estimated fair value, Less than 12 months	3,765
Available-for-sale Securities, Gross unrealized losses, Total	(23)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	3,765
Agency Mortgage-Backed Securities [Member] \| Agency Securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(3,694)
Available-for-sale Securities, Estimated fair value, Less than 12 months	203,147
Available-for-sale Securities, Gross unrealized losses, Total	(3,694)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	203,147
Agency Mortgage-Backed Securities [Member] \| Non-Agency [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(2)
Available-for-sale Securities, Estimated fair value, 12 months or more	621
Available-for-sale Securities, Gross unrealized losses, Total	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	621
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(639)
Available-for-sale Securities, Estimated fair value, Less than 12 months	88,265
Available-for-sale Securities, Gross unrealized losses, Total	(639)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	88,265
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(485)
Available-for-sale Securities, Estimated fair value, Less than 12 months	29,150
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(1,267)
Available-for-sale Securities, Estimated fair value, 12 months or more	144,890
Available-for-sale Securities, Gross unrealized losses, Total	(1,752)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	$ 174,040

Schedule of available for sale and held to maturity securities.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563

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-Publisher FASB
-Name Accounting Standards Codification
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 6
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