Summary of Significant Accounting Policies (Details 2) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
---|---|---|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Transfers and Servicing of Financial Assets | ||
Mortgage loans serviced for others | $ 552.0 | $ 458.7 |
Loans | ||
Period from due date after which accrual of interest income is discontinued | 90 days | |
Period of rolling quarterly adjustment on which actual loss history is based | 5 years |