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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, 2025 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 | $ (1,103)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 253,688
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (116,086)
Available-for-sale Securities, Estimated fair value, 12 months or more | 1,086,210
Available-for-sale Securities, Gross unrealized losses, Total | (117,189)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 1,339,898
U.S. Government Agency 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 | 0
Available-for-sale Securities, Estimated fair value, Less than 12 months | 0
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (77)
Available-for-sale Securities, Estimated fair value, 12 months or more | 1,889
Available-for-sale Securities, Gross unrealized losses, Total | (77)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 1,889
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 | (64)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 9,935
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (25,782)
Available-for-sale Securities, Estimated fair value, 12 months or more | 382,382
Available-for-sale Securities, Gross unrealized losses, Total | (25,846)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 392,317
Mortgage-Backed Securities [Member] | Agency 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 | (1,014)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 232,197
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (89,336)
Available-for-sale Securities, Estimated fair value, 12 months or more | 621,946
Available-for-sale Securities, Gross unrealized losses, Total | (90,350)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 854,143
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 | 0
Available-for-sale Securities, Estimated fair value, Less than 12 months | 0
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (121)
Available-for-sale Securities, Estimated fair value, 12 months or more | 10,976
Available-for-sale Securities, Gross unrealized losses, Total | (121)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 10,976
Mortgage-Backed Securities [Member] | Non Agency Mortgage 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 | 0
Available-for-sale Securities, Estimated fair value, Less than 12 months | 0
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (6)
Available-for-sale Securities, Estimated fair value, 12 months or more | 158
Available-for-sale Securities, Gross unrealized losses, Total | (6)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 158
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 | (25)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 11,556
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (764)
Available-for-sale Securities, Estimated fair value, 12 months or more | 68,859
Available-for-sale Securities, Gross unrealized losses, Total | (789)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | $ 80,415

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