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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 | 6 Months Ended
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Jun. 30, 2017 USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |
Available-for-sale Securities, Gross unrealized losses, Less than 12 months | $ (7,948)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 636,866
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (4,965)
Available-for-sale Securities, Estimated fair value, 12 months or more | 195,362
Available-for-sale Securities, Gross unrealized losses, Total | (12,913)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 832,228
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | (14,769)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 947,884
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | (1,768)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 35,556
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss, Total | (16,537)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value, Total | 983,440
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 | (19)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 4,565
Available-for-sale Securities, Gross unrealized losses, Total | (19)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 4,565
State And Municipal 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 | (261)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 9,765
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (3,044)
Available-for-sale Securities, Estimated fair value, 12 months or more | 60,113
Available-for-sale Securities, Gross unrealized losses, Total | (3,305)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 69,878
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 | (3,579)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 396,324
Available-for-sale Securities, Gross unrealized losses, Total | (3,579)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 396,324
Asset-Backed Securities [Member] |
Schedule Of Available For Sale And Held To Maturity Securities [Line Items] |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | (312)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 116,997
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | (1,751)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 34,391
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss, Total | (2,063)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value, Total | 151,388
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 | (604)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 155,073
Available-for-sale Securities, Gross unrealized losses, 12 months or more | (1,817)
Available-for-sale Securities, Estimated fair value, 12 months or more | 133,664
Available-for-sale Securities, Gross unrealized losses, Total | (2,421)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 288,737
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | (14,457)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 830,887
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | (17)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,165
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss, Total | (14,474)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value, Total | 832,052
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 | (3,485)
Available-for-sale Securities, Estimated fair value, Less than 12 months | 71,139
Available-for-sale Securities, Gross unrealized losses, Total | (3,485)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 71,139
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 | (104)
Available-for-sale Securities, Estimated fair value, 12 months or more | 1,585
Available-for-sale Securities, Gross unrealized losses, Total | (104)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | $ 1,585

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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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