|**STOCK-BASED COMPENSATION (Tables)**                                         | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                            
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|**Disclosure of Compensation Related Costs, Share-based Payments [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Schedule of Nonvested Restricted Stock                                        | The table below summarizes the changes in the Bank’s non-vested performance stock during the past year.SharesWeighted averagegrant  date fair valueTotal non-vested performance stock at December 31, 20121,536,853$8.65Santander performance shares granted in 2013——Santander performance shares vested in 2013——Non-vested shares forfeited during 2013(829,480)11.54Total non-vested performance stock at December 31, 2013707,373$5.25
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|Total non-vested performance stock at December 31, 2012                       |                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Santander performance shares granted in 2013                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Santander performance shares vested in 2013                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Non-vested shares forfeited during 2013                                       |                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Total non-vested performance stock at December 31, 2013                       |                                                                                                                                                                                                                                                                                                                                                                                                                                            

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