Quarterly report pursuant to Section 13 or 15(d)

Loans sales and securitizations (Details)

v2.4.0.8
Loans sales and securitizations (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Residential Mortgage [Member]
        
Summarizes activity relating to residential mortgage loans sold with servicing retained        
Residential mortgage loans sold with servicing retained $ 853,287 $ 889,769 $ 2,603,414 $ 2,746,068
Pretax gains resulting from above loan sales 23,224 [1] 30,195 [1] 91,519 [1] 83,849 [1]
Summarize the changes in MSRs using the fair value method        
Fair value, beginning of period 37,544 45,061 35,202 65,001
Change in fair value during the period due to:        
Time decay 727 633 1,961 2,282
Payoffs 3,015 3,043 9,774 11,334
Changes in valuation inputs or assumptions 304 (4,764) 10,639 (14,764)
Fair value, end of period $ 34,106 $ 36,621 $ 34,106 $ 36,621
Residential Mortgage [Member] | Fair value method
        
Change in fair value during the period due to:        
Weighted-average life (in years) 3 years 2 months 0 days 3 years 2 months 0 days 3 years 2 months 0 days 3 years 2 months 0 days
Residential Mortgage [Member] | Amortization method
        
Change in fair value during the period due to:        
Weighted-average life (in years) 3 years 4 months 0 days 3 years 4 months 0 days 3 years 4 months 0 days 3 years 4 months 0 days
Automobile Loan [Member] | Amortization method
        
Change in fair value during the period due to:        
Weighted-average life (in years) 4 years 3 months 0 days 4 years 3 months 0 days 4 years 3 months 0 days 4 years 3 months 0 days
[1] Recorded in mortgage banking income.