XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Bank Deposits (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Deposits Liabilities Balance Sheet Reported Amounts [Abstract] |
Schedule Of Deposits | Deposits consist of money market and savings accounts, certificates of deposit, and demand deposits. Deposits at June 30, 2018 and December 31, 2017 were as follows (in thousands):
|  | June 30, 2018 |  |  | December 31, 2017 |
Money market and savings accounts |  | $ | 12,183,710 |  |  | $ | 13,219,675 |
Demand deposits (interest-bearing) |  |  | 321,421 |  |  |  | 184,829 |
Demand deposits (non-interest-bearing) |  |  | 21,634 |  |  |  | 5,856 |
Certificates of deposit |  |  | 1,364,084 |  |  |  | 1,575 |
|  | $ | 13,890,849 |  |  | $ | 13,411,935 |

X
- Definition Schedule of deposits. + References No definition available. + Details
Name: | sf_ScheduleOfDepositsTableTextBlock
Namespace Prefix: | sf_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DepositsLiabilitiesBalanceSheetReportedAmountsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration