Quarterly report pursuant to Section 13 or 15(d)

Loans sales and securitizations (Details 1)

v3.2.0.727
Loans sales and securitizations (Details 1) - Types of Financial Instruments [Domain] - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Residential Mortgage [Member]          
Summarizes activity relating to loans sold securitized with servicing retained          
Loans sold with servicing retained $ 938,412,000 $ 566,471,000 $ 1,569,096,000 $ 1,048,308,000  
Summarize the changes in servicing rights using the amortization method          
Carrying value, beginning of year 125,454,000 132,651,000 132,813,000 128,064,000 $ 128,064,000
New servicing assets created 10,338,000 5,578,000 16,792,000 10,631,000  
Servicing assets acquired 0 0 0 3,505,000  
Impairment charge/(recovery) 12,970,000 (3,685,000) 4,980,000 (7,027,000)  
Amortization and other (5,635,000) (1,431,000) (11,458,000) (2,060,000)  
Carrying value, end of period 143,127,000 133,113,000 143,127,000 133,113,000 132,813,000
Fair value, end of period $ 143,434,000 $ 139,915,000 $ 143,434,000 $ 139,915,000  
Residential Mortgage [Member] | Fair value method          
Summarize the changes in servicing rights using the amortization method          
Weighted-average life (in years) 5 years 1 month 3 years 11 months 5 years 1 month 3 years 11 months  
Residential Mortgage [Member] | Amortization method          
Summarize the changes in servicing rights using the amortization method          
Weighted-average life (in years) 6 years 6 months 5 years 11 months 6 years 6 months 5 years 11 months  
Automobile Loan [Member]          
Summarizes activity relating to loans sold securitized with servicing retained          
Loans sold with servicing retained $ 750,000,000 $ 0   $ 0  
Summarize the changes in servicing rights using the amortization method          
Carrying value, beginning of year 5,063,000 14,357,000 $ 6,898,000 17,672,000 17,672,000
New servicing assets created 11,180,000 0 11,180,000 0  
Amortization and other (1,913,000) (2,842,000) (3,748,000) (6,157,000)  
Carrying value, end of period 14,330,000 11,515,000 14,330,000 11,515,000 6,898,000
Fair value, end of period $ 14,336,000 $ 11,846,000 $ 14,336,000 $ 11,846,000  
Automobile Loan [Member] | Amortization method          
Summarize the changes in servicing rights using the amortization method          
Weighted-average life (in years) 3 years 2 months 3 years 3 years 2 months 3 years  
Small Business Association (SBA) Loan [Member]          
Summarizes activity relating to loans sold securitized with servicing retained          
Loans sold with servicing retained $ 53,534,000 $ 45,229,000 $ 95,935,000 $ 86,101,000  
Summarize the changes in servicing rights using the amortization method          
Carrying value, beginning of year 17,947,000 17,028,000 18,536,000 16,865,000 16,865,000
New servicing assets created 1,839,000 1,526,000 3,296,000 2,861,000  
Impairment charge/(recovery) 0 0 0 0  
Amortization and other (1,514,000) (1,362,000) (3,560,000) (2,534,000)  
Carrying value, end of period 18,272,000 17,192,000 18,272,000 17,192,000 $ 18,536,000
Fair value, end of period $ 20,350,000 $ 17,192,000 $ 20,350,000 $ 17,192,000  
Weighted-average life (in years) 3 years 4 months 3 years 6 months