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COVERED ASSETS AND FDIC INDEMNIFICATION ASSET (Details 4) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
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Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | $ 2,908,773 | $ 3,450,956
Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 2,269,715 | 2,569,918
Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 33,714 | 58,016
Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 597,609 | 814,814
Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 7,735 | 8,208
Real Estate Loans |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 2,347,985 | 2,775,972
Real Estate Loans | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 1,792,433 | 2,050,246
Real Estate Loans | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 21,706 | 34,968
Real Estate Loans | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 526,306 | 682,745
Real Estate Loans | Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 7,540 | 8,013
Real Estate Loans | Residential Single-family |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 314,483 | 362,345
Real Estate Loans | Residential Single-family | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 300,876 | 345,568
Real Estate Loans | Residential Single-family | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 1,253 | 982
Real Estate Loans | Residential Single-family | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 12,354 | 15,795
Real Estate Loans | Residential Multifamily |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 513,141 | 647,440
Real Estate Loans | Residential Multifamily | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 466,014 | 571,061
Real Estate Loans | Residential Multifamily | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 2,868 | 8,074
Real Estate Loans | Residential Multifamily | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 44,259 | 68,305
Real Estate Loans | Commercial and Industrial Real Estate |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 1,190,964 | 1,348,556
Real Estate Loans | Commercial and Industrial Real Estate | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 884,924 | 963,069
Real Estate Loans | Commercial and Industrial Real Estate | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 8,031 | 10,777
Real Estate Loans | Commercial and Industrial Real Estate | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 291,368 | 367,869
Real Estate Loans | Commercial and Industrial Real Estate | Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 6,641 | 6,841
Real Estate Loans | Construction and Land |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 329,397 | 417,631
Real Estate Loans | Construction and Land | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 140,619 | 170,548
Real Estate Loans | Construction and Land | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 9,554 | 15,135
Real Estate Loans | Construction and Land | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 178,325 | 230,776
Real Estate Loans | Construction and Land | Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 899 | 1,172
Other Loans |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 560,788 | 674,984
Other Loans | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 477,282 | 519,672
Other Loans | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 12,008 | 23,048
Other Loans | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 71,303 | 132,069
Other Loans | Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 195 | 195
Other Loans | Commercial Business |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 481,255 | 587,333
Other Loans | Commercial Business | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 399,075 | 434,138
Other Loans | Commercial Business | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 11,880 | 22,533
Other Loans | Commercial Business | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 70,105 | 130,467
Other Loans | Commercial Business | Doubtful |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 195 | 195
Other Loans | Other Consumer |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 79,533 | 87,651
Other Loans | Other Consumer | Pass/Watch |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 78,207 | 85,534
Other Loans | Other Consumer | Special Mention |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | 128 | 515
Other Loans | Other Consumer | Substandard |  |
Carrying Amounts And Composition Of Covered Loans |  |
Total principal balance | $ 1,198 | $ 1,602

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