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INVESTMENT SECURITIES (Details 4) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2014 | Dec. 31, 2013
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | $ 333,289 | $ 1,803,074
Continuous unrealized loss position less than 12 months, unrealized losses | (3,939) | (45,167)
Continuous unrealized loss position 12 months or more, fair value | 966,358 | 250,361
Continuous unrealized loss position 12 months or more, unrealized losses | (22,713) | (19,729)
Continuous unrealized loss position total, fair value | 1,299,647 | 2,053,435
Continuous unrealized loss position total, unrealized losses | (26,652) | (64,896)
U.S. Treasury securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 30,630 | 337,248
Continuous unrealized loss position less than 12 months, unrealized losses | (40) | (3,622)
Continuous unrealized loss position 12 months or more, fair value | 184,740 |
Continuous unrealized loss position 12 months or more, unrealized losses | (1,588) |
Continuous unrealized loss position total, fair value | 215,370 | 337,248
Continuous unrealized loss position total, unrealized losses | (1,628) | (3,622)
U.S. government agency and U.S. government sponsored enterprise debt securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 33,829 | 387,097
Continuous unrealized loss position less than 12 months, unrealized losses | (882) | (12,726)
Continuous unrealized loss position 12 months or more, fair value | 171,913 |
Continuous unrealized loss position 12 months or more, unrealized losses | (3,204) |
Continuous unrealized loss position total, fair value | 205,742 | 387,097
Continuous unrealized loss position total, unrealized losses | (4,086) | (12,726)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 23,683 | 114,754
Continuous unrealized loss position less than 12 months, unrealized losses | (513) | (3,280)
Continuous unrealized loss position 12 months or more, fair value | 43,550 | 16,065
Continuous unrealized loss position 12 months or more, unrealized losses | (850) | (1,169)
Continuous unrealized loss position total, fair value | 67,233 | 130,819
Continuous unrealized loss position total, unrealized losses | (1,363) | (4,449)
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 205,095 | 502,285
Continuous unrealized loss position less than 12 months, unrealized losses | (1,992) | (10,570)
Continuous unrealized loss position 12 months or more, fair value | 306,292 | 92,540
Continuous unrealized loss position 12 months or more, unrealized losses | (7,065) | (4,357)
Continuous unrealized loss position total, fair value | 511,387 | 594,825
Continuous unrealized loss position total, unrealized losses | (9,057) | (14,927)
Municipal securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 3,949 | 173,782
Continuous unrealized loss position less than 12 months, unrealized losses | (15) | (10,765)
Continuous unrealized loss position 12 months or more, fair value | 138,062 | 47,892
Continuous unrealized loss position 12 months or more, unrealized losses | (4,632) | (6,768)
Continuous unrealized loss position total, fair value | 142,011 | 221,674
Continuous unrealized loss position total, unrealized losses | (4,647) | (17,533)
Other residential mortgage-backed securities: | Investment grade |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value |  | 46,328
Continuous unrealized loss position less than 12 months, unrealized losses |  | (1,802)
Continuous unrealized loss position 12 months or more, fair value | 14,485 |
Continuous unrealized loss position 12 months or more, unrealized losses | (416) |
Continuous unrealized loss position total, fair value | 14,485 | 46,328
Continuous unrealized loss position total, unrealized losses | (416) | (1,802)
Corporate debt securities | Investment grade |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 19,943 | 193,482
Continuous unrealized loss position less than 12 months, unrealized losses | (57) | (1,538)
Continuous unrealized loss position 12 months or more, fair value | 89,752 | 79,442
Continuous unrealized loss position 12 months or more, unrealized losses | (1,389) | (1,806)
Continuous unrealized loss position total, fair value | 109,695 | 272,924
Continuous unrealized loss position total, unrealized losses | (1,446) | (3,344)
Corporate debt securities | Non-investment grade |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position 12 months or more, fair value | 14,660 | 14,422
Continuous unrealized loss position 12 months or more, unrealized losses | (3,505) | (5,629)
Continuous unrealized loss position total, fair value | 14,660 | 14,422
Continuous unrealized loss position total, unrealized losses | (3,505) | (5,629)
Other securities |  |
Continuous unrealized loss position, fair values of investment securities available-for-sale |  |
Continuous unrealized loss position less than 12 months, fair value | 16,160 | 48,098
Continuous unrealized loss position less than 12 months, unrealized losses | (440) | (864)
Continuous unrealized loss position 12 months or more, fair value | 2,904 |
Continuous unrealized loss position 12 months or more, unrealized losses | (64) |
Continuous unrealized loss position total, fair value | 19,064 | 48,098
Continuous unrealized loss position total, unrealized losses | $ (504) | $ (864)

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- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: 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=27724398&loc=d3e27290-111563 + Details
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