Loans sales and securitizations (Details 1) (USD $)
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3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||||
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Sep. 30, 2014
Fair value method
Residential Mortgage [Member]
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Dec. 31, 2013
Fair value method
Residential Mortgage [Member]
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Sep. 30, 2014
Amortization method
Residential Mortgage [Member]
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Dec. 31, 2013
Amortization method
Residential Mortgage [Member]
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Sep. 30, 2014
Amortization method
Automobile Loan [Member]
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Dec. 31, 2013
Amortization method
Automobile Loan [Member]
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Sep. 30, 2014
Amortization method
Small Business Association (SBA) Loan [Member]
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Dec. 31, 2013
Amortization method
Small Business Association (SBA) Loan [Member]
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Sep. 30, 2014
Residential Mortgage [Member]
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Sep. 30, 2013
Residential Mortgage [Member]
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Sep. 30, 2014
Residential Mortgage [Member]
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Sep. 30, 2013
Residential Mortgage [Member]
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Sep. 30, 2014
Residential Mortgage [Member]
Fair value method
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Sep. 30, 2013
Residential Mortgage [Member]
Fair value method
|
Sep. 30, 2014
Residential Mortgage [Member]
Fair value method
|
Sep. 30, 2013
Residential Mortgage [Member]
Fair value method
|
Sep. 30, 2014
Residential Mortgage [Member]
Amortization method
|
Sep. 30, 2013
Residential Mortgage [Member]
Amortization method
|
Sep. 30, 2014
Residential Mortgage [Member]
Amortization method
|
Sep. 30, 2013
Residential Mortgage [Member]
Amortization method
|
Sep. 30, 2014
Automobile Loan [Member]
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Sep. 30, 2013
Automobile Loan [Member]
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Sep. 30, 2014
Automobile Loan [Member]
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Sep. 30, 2013
Automobile Loan [Member]
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Sep. 30, 2014
Automobile Loan [Member]
Amortization method
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Sep. 30, 2013
Automobile Loan [Member]
Amortization method
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Sep. 30, 2014
Automobile Loan [Member]
Amortization method
|
Sep. 30, 2013
Automobile Loan [Member]
Amortization method
|
Sep. 30, 2014
Small Business Association (SBA) Loan [Member]
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Sep. 30, 2013
Small Business Association (SBA) Loan [Member]
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Sep. 30, 2014
Small Business Association (SBA) Loan [Member]
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Sep. 30, 2013
Small Business Association (SBA) Loan [Member]
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Summarizes activity relating to loans sold securitized with servicing retained | ||||||||||||||||||||||||||||||||
Loans sold with servicing retained | $ 654,747,000 | $ 853,287,000 | $ 1,703,056,000 | $ 2,603,414,000 | $ 63,470,000 | $ 49,808,000 | $ 149,571,000 | $ 116,094,000 | ||||||||||||||||||||||||
Summarize the changes in servicing rights using the amortization method | ||||||||||||||||||||||||||||||||
Carrying value, beginning of year | 133,113,000 | 117,978,000 | 128,064,000 | 85,545,000 | 11,515,000 | 25,688,000 | 17,672,000 | 35,606,000 | 17,192,000 | 15,220,000 | 16,865,000 | 15,147,000 | ||||||||||||||||||||
New servicing assets created | 7,173,000 | 9,864,000 | 17,802,000 | 28,614,000 | 0 | 0 | 0 | 0 | 2,181,000 | 1,339,000 | 5,042,000 | 3,567,000 | ||||||||||||||||||||
Servicing assets acquired | 0 | 0 | 3,505,000 | 0 | ||||||||||||||||||||||||||||
Impairment charge/(recovery) | 487,000 | (132,000) | (1,573,000) | 21,459,000 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||
Amortization and other | (4,311,000) | (3,040,000) | (11,336,000) | (10,948,000) | (2,476,000) | (4,334,000) | (8,633,000) | (14,252,000) | (1,458,000) | (1,154,000) | (3,992,000) | (3,309,000) | ||||||||||||||||||||
Carrying value, end of period | 136,462,000 | 124,670,000 | 136,462,000 | 124,670,000 | 9,039,000 | 21,354,000 | 9,039,000 | 21,354,000 | 17,915,000 | 15,405,000 | 17,915,000 | 15,405,000 | ||||||||||||||||||||
Fair value, end of period | 141,976,000 | 136,590,000 | 141,976,000 | 136,590,000 | 9,130,000 | 21,446,000 | 9,130,000 | 21,446,000 | 17,915,000 | 15,405,000 | 17,915,000 | 15,405,000 | ||||||||||||||||||||
Weighted-average life (in years) | 5 years 2 months 0 days | 4 years 2 months 0 days | 5 years 2 months 0 days | 4 years 2 months 0 days | 6 years 10 months 0 days | 6 years 5 months 0 days | 6 years 10 months 0 days | 6 years 5 months 0 days | 3 years 0 months 0 days | 3 years 10 months 0 days | 3 years 0 months 0 days | 3 years 10 months 0 days | 3 years 6 months 0 days | |||||||||||||||||||
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] | ||||||||||||||||||||||||||||||||
Constant pre-payment rate, actual | 13.50% | 11.90% | 9.40% | 6.70% | 14.63% | 14.65% | 5.70% | 5.90% | ||||||||||||||||||||||||
Constant pre-payment rate, 10% adverse change | (1,127,000) | (1,935,000) | (4,485,000) | (6,813,000) | (359,000) | (584,000) | (206,000) | (221,000) | ||||||||||||||||||||||||
Constant pre-payment rate, 20% adverse change | (2,164,000) | (3,816,000) | (8,671,000) | (12,977,000) | (604,000) | (1,183,000) | (410,000) | (438,000) | ||||||||||||||||||||||||
Spread over forward interest rate swap rates, actual | 6.76% | 10.69% | 9.55% | 9.40% | 5.00% | 5.00% | 15.00% | 15.00% | ||||||||||||||||||||||||
Spread over forward interest rate swap rates, 10% adverse change | (777,000) | (1,376,000) | (4,682,000) | (6,027,000) | (3,000) | (7,000) | (937,000) | (446,000) | ||||||||||||||||||||||||
Spread over forward interest rate swap rates, 20% adverse change | $ (1,508,000) | $ (2,753,000) | $ (9,064,000) | $ (12,054,000) | $ (6,000) | $ (15,000) | $ (1,442,000) | $ (873,000) |