Note 3. Investment Securities: Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value (Details) (USD $) | 9 Months Ended | 12 Months Ended |
In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | $207,068 | $335,792 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 2,828 | 14,937 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 201,006 | 63,529 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 5,956 | 5,132 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 408,074 | 399,321 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 8,784 | 20,069 |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | 76 | 126 |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | 65 | 27 |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 141 | 153 |
Domestic Corporate Debt Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 107,877 | 124,531 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 1,754 | 5,340 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 83,832 | 21,070 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 2,938 | 2,127 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 191,709 | 145,601 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 4,692 | 7,467 |
Residential Mortgage Backed Securities Member | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 1,657 | 2,047 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 13 | 8 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,657 | 2,047 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 13 | 8 |
Commercial Mortgage Backed Securities | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 924 | 593 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 51 | 382 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 924 | 593 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 51 | 382 |
US Government-sponsored Enterprises Debt Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 9,164 | 22,731 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 80 | 123 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,516 | 5,360 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 70 | 217 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 11,680 | 28,091 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 150 | 340 |
US States and Political Subdivisions Debt Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 59,372 | 149,704 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 627 | 7,312 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 95,235 | 32,983 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 2,390 | 2,065 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 154,607 | 182,687 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 3,017 | 9,377 |
Foreign Government Debt | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 21,238 | 27,587 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 187 | 1,766 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 18,499 | 3,523 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 507 | 341 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 39,737 | 31,110 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 694 | 2,107 |
Redeemable Preferred Stock | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 3,743 | 3,485 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 19 | 278 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,743 | 3,485 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 19 | 278 |
Debt Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 203,051 | 330,578 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 2,680 | 14,833 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 201,006 | 63,529 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss | 5,956 | 5,132 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 404,057 | 394,107 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 8,636 | 19,965 |
COMMON STOCK | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 2,610 | 2,589 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 145 | 70 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,610 | 2,589 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 145 | 70 |
Nonredeemable Preferred Stock | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 1,407 | 2,625 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 3 | 34 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,407 | 2,625 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 3 | 34 |
Equity Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | 4,017 | 5,214 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | 148 | 104 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 4,017 | 5,214 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | 148 | 104 |
US Treasury Securities | ' | ' |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value | ' | 493 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss | ' | 6 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | ' | 493 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss | ' | $6 |