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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 | Sep. 30, 2020 USD ($)
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Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |
Available-for-sale Securities, Gross unrealized losses, Less than 12 months | $ (8,177)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 689,132
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (9,779)
Available-for-sale Securities, Estimated fair value, 12 months or more | 633,043
Available-for-sale Securities, Gross unrealized losses, Total | (17,956)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 1,322,175
Mortgage Backed Securities [Member] | Agency [Member] |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |
Available-for-sale Securities, Gross unrealized losses, Less than 12 months | (118)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 6,797
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (98)
Available-for-sale Securities, Estimated fair value, 12 months or more | 10,191
Available-for-sale Securities, Gross unrealized losses, Total | (216)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 16,988
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 | (84)
Available-for-sale Securities, Estimated fair value, 12 months or more | 713
Available-for-sale Securities, Gross unrealized losses, Total | (84)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 713
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 | (43)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 13,956
Available-for-sale Securities, Gross unrealized losses, Total | (43)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 13,956
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 | (8,016)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 668,379
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (9,597)
Available-for-sale Securities, Estimated fair value, 12 months or more | 622,139
Available-for-sale Securities, Gross unrealized losses, Total | (17,613)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | $ 1,290,518

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