XML 39 R25.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Deposits (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2015
Banking and Thrift [Abstract] |
Schedule of Deposits | The following table summarizes total deposits at March 31, 2015 and December 31, 2014.
|  | March 31, |  | December 31, |
|  | 2015 |  | 2014 |
Deposits - interest bearing |  | $ | 10,466,838 |  |  | $ | 10,539,953 |  |
Deposits - non-interest bearing |  | 915 |  |  | 602 |  |
Total deposits |  | $ | 10,467,753 |  |  | $ | 10,540,555 |  |
Interest Bearing Deposits | Interest bearing deposits at March 31, 2015 and December 31, 2014 are summarized as follows:
|  | March 31, 2015 |  | December 31, 2014 |
|  | Amount |  | Qtr.-End Weighted Average Stated Rate |  | Amount |  | Year-End Weighted Average Stated Rate |
Money market |  | $ | 4,512,730 |  |  | 1.14 | % |  | $ | 4,527,448 |  |  | 1.15 | % |
Savings |  | 695,675 |  |  | 0.81 |  |  | 703,687 |  |  | 0.81 |  |
Certificates of deposit |  | 5,258,433 |  |  | 1.02 |  |  | 5,308,818 |  |  | 1.00 |  |
Deposits - interest bearing |  | $ | 10,466,838 |  |  |  |  | $ | 10,539,953 |  |  |  |  |

X
- Definition [Table Text Block] for Interest Bearing Deposits [Table] + References No definition available. + Details
Name: | slm_InterestBearingDepositsTableTextBlock
Namespace Prefix: | slm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Deposits [Table Text Block] + References No definition available. + Details
Name: | slm_ScheduleofDepositsTableTextBlock
Namespace Prefix: | slm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BankingAndThriftAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration