XML 55 R46.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Bank Loans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Receivables [Abstract] |
Schedule Of Balance And Associated Percentage Of Each Major Loan Category In Bank Loan Portfolio |
|  | December 31, 2016 |  |  | December 31, 2015 |
|  | Balance |  |  | Percent |  |  | Balance |  |  | Percent |
Residential real estate |  | $ | 2,161,400 |  |  |  | 38.4 | % |  | $ | 429,132 |  |  |  | 13.5 | %
Commercial and industrial |  |  | 1,710,399 |  |  |  | 30.3 |  |  |  | 1,216,656 |  |  |  | 38.2 |
Securities-based loans |  |  | 1,614,033 |  |  |  | 28.6 |  |  |  | 1,388,953 |  |  |  | 43.7 |
Commercial real estate |  |  | 78,711 |  |  |  | 1.4 |  |  |  | 92,623 |  |  |  | 2.9 |
Consumer |  |  | 45,391 |  |  |  | 0.8 |  |  |  | 36,846 |  |  |  | 1.2 |
Home equity lines of credit |  |  | 15,008 |  |  |  | 0.3 |  |  |  | 12,475 |  |  |  | 0.4 |
Construction and land |  |  | 12,623 |  |  |  | 0.2 |  |  |  | 3,899 |  |  |  | 0.1 |
Gross bank loans |  |  | 5,637,565 |  |  |  | 100.0 | % |  |  | 3,180,584 |  |  |  | 100.0 | %
Unamortized loan premium/(discount), net |  |  | 858 |  |  |  |  |  |  |  | (5,296 | ) |  |  |  |
Loans in process |  |  | (49 | ) |  |  |  |  |  |  | (419 | ) |  |  |  |
Unamortized loan fees, net |  |  | (2,021 | ) |  |  |  |  |  |  | (1,567 | ) |  |  |  |
Allowance for loan losses |  |  | (45,163 | ) |  |  |  |  |  |  | (29,787 | ) |  |  |  |
Bank loans, net |  | $ | 5,591,190 |  |  |  |  |  |  | $ | 3,143,515 |  |  |  |  |
Activity In The Allowance For Loan Losses By Portfolio Segment |
|  | Year Ended December 31, 2016 |
|  | Beginning Balance |  |  | Provision |  |  | Charge- offs |  |  | Recoveries |  |  | Ending Balance |
Commercial and industrial |  | $ | 24,748 |  |  | $ | 10,646 |  |  | $ | (267 | ) |  | $ | — |  |  | $ | 35,127 |
Securities-based loans |  |  | 1,607 |  |  |  | 1,487 |  |  |  | — |  |  |  | — |  |  |  | 3,094 |
Residential real estate |  |  | 1,241 |  |  |  | 1,430 |  |  |  | (13 | ) |  |  | 2 |  |  |  | 2,660 |
Commercial real estate |  |  | 264 |  |  |  | 1,090 |  |  |  | — |  |  |  | 9 |  |  |  | 1,363 |
Home equity lines of credit |  |  | 290 |  |  |  | 81 |  |  |  | — |  |  |  | — |  |  |  | 371 |
Construction and land |  |  | 78 |  |  |  | 154 |  |  |  | — |  |  |  | — |  |  |  | 232 |
Consumer |  |  | 105 |  |  |  | 38 |  |  |  | (16 | ) |  |  | 2 |  |  |  | 129 |
Qualitative |  |  | 1,454 |  |  |  | 733 |  |  |  | — |  |  |  | — |  |  |  | 2,187 |
|  | $ | 29,787 |  |  | $ | 15,659 |  |  | $ | (296 | ) |  | $ | 13 |  |  | $ | 45,163 |
|  | Year Ended December 31, 2015 |
|  | Beginning Balance |  |  | Provision |  |  | Charge- offs |  |  | Recoveries |  |  | Ending Balance |
Commercial and industrial |  | $ | 16,609 |  |  | $ | 8,139 |  |  | $ | — |  |  | $ | — |  |  | $ | 24,748 |
Securities-based loans |  |  | 1,099 |  |  |  | 508 |  |  | — |  |  | — |  |  |  | 1,607 |
Residential real estate |  |  | 787 |  |  |  | 544 |  |  |  | (144 | ) |  |  | 54 |  |  |  | 1,241 |
Home equity lines of credit |  |  | 267 |  |  |  | 15 |  |  | — |  |  |  | 8 |  |  |  | 290 |
Commercial real estate |  |  | 232 |  |  |  | (30 | ) |  | — |  |  |  | 62 |  |  |  | 264 |
Consumer |  |  | 156 |  |  |  | (58 | ) |  | — |  |  |  | 7 |  |  |  | 105 |
Construction and land |  | — |  |  |  | 78 |  |  | — |  |  | — |  |  |  | 78 |
Qualitative |  |  | 1,581 |  |  |  | (127 | ) |  | — |  |  | — |  |  |  | 1,454 |
|  | $ | 20,731 |  |  | $ | 9,069 |  |  | $ | (144 | ) |  | $ | 131 |  |  | $ | 29,787 |
Recorded Balance Of Loans And Amount Of Allowance Allocated Based Upon Impairment Method By Portfolio Segment |
|  | Allowance for Loan Losses |  |  | Recorded Investment in Loans |
|  | Individually Evaluated for Impairment |  |  | Collectively Evaluated for Impairment |  |  | Total |  |  | Individually Evaluated for Impairment |  |  | Collectively Evaluated for Impairment |  |  | Total |
Residential real estate |  | $ | 24 |  |  | $ | 2,636 |  |  | $ | 2,660 |  |  | $ | 178 |  |  | $ | 2,161,222 |  |  | $ | 2,161,400 |
Commercial and industrial |  |  | 2,392 |  |  |  | 32,735 |  |  |  | 35,127 |  |  |  | 16,815 |  |  |  | 1,693,584 |  |  |  | 1,710,399 |
Securities-based loans |  | — |  |  |  | 3,094 |  |  |  | 3,094 |  |  | — |  |  |  | 1,614,033 |  |  |  | 1,614,033 |
Commercial real estate |  |  | 722 |  |  |  | 641 |  |  |  | 1,363 |  |  |  | 9,522 |  |  |  | 69,189 |  |  |  | 78,711 |
Consumer |  |  | 6 |  |  |  | 123 |  |  |  | 129 |  |  |  | 6 |  |  |  | 45,385 |  |  |  | 45,391 |
Home equity lines of credit |  |  | 231 |  |  |  | 140 |  |  |  | 371 |  |  |  | 413 |  |  |  | 14,595 |  |  |  | 15,008 |
Construction and land |  | — |  |  |  | 232 |  |  |  | 232 |  |  | — |  |  |  | 12,623 |  |  |  | 12,623 |
Qualitative |  | — |  |  |  | 2,187 |  |  |  | 2,187 |  |  | — |  |  | — |  |  |  | — |
|  | $ | 3,375 |  |  | $ | 41,788 |  |  | $ | 45,163 |  |  | $ | 26,934 |  |  | $ | 5,610,631 |  |  | $ | 5,637,565 |
|  | Allowance for Loan Losses |  |  | Recorded Investment in Loans |
|  | Individually Evaluated for Impairment |  |  | Collectively Evaluated for Impairment |  |  | Total |  |  | Individually Evaluated for Impairment |  |  | Collectively Evaluated for Impairment |  |  | Total |
Securities-based loans |  | $ | — |  |  | $ | 1,607 |  |  | $ | 1,607 |  |  | $ | — |  |  | $ | 1,388,953 |  |  | $ | 1,388,953 |
Commercial and industrial |  |  | — |  |  |  | 24,748 |  |  |  | 24,748 |  |  |  | — |  |  |  | 1,216,656 |  |  |  | 1,216,656 |
Residential real estate |  |  | 24 |  |  |  | 1,217 |  |  |  | 1,241 |  |  |  | 182 |  |  |  | 428,950 |  |  |  | 429,132 |
Commercial real estate |  |  | — |  |  |  | 264 |  |  |  | 264 |  |  |  | — |  |  |  | 92,623 |  |  |  | 92,623 |
Consumer |  |  | 14 |  |  |  | 91 |  |  |  | 105 |  |  |  | 14 |  |  |  | 36,832 |  |  |  | 36,846 |
Home equity lines of credit |  |  | 149 |  |  |  | 141 |  |  |  | 290 |  |  |  | 323 |  |  |  | 12,152 |  |  |  | 12,475 |
Construction and land |  |  | — |  |  |  | 78 |  |  |  | 78 |  |  |  | — |  |  |  | 3,899 |  |  |  | 3,899 |
Qualitative |  |  | — |  |  |  | 1,454 |  |  |  | 1,454 |  |  |  | — |  |  |  | — |  |  |  | — |
|  | $ | 187 |  |  | $ | 29,600 |  |  | $ | 29,787 |  |  | $ | 519 |  |  | $ | 3,180,065 |  |  | $ | 3,180,584 |
Loans That Were Individually Evaluated For Impairment By Portfolio Segment |
|  | December 31, 2016 |
|  | Unpaid Contractual Principal Balance |  |  | Recorded Investment with No Allowance |  |  | Recorded Investment with Allowance |  |  | Total Recorded Investment |  |  | Related Allowance |  |  | Average Recorded Investment |
Commercial and industrial |  | $ | 16,815 |  |  | $ | — |  |  | $ | 16,815 |  |  | $ | 16,815 |  |  | $ | 2,392 |  |  | $ | 22,559 |
Commercial real estate |  |  | 10,503 |  |  | — |  |  |  | 9,522 |  |  |  | 9,522 |  |  |  | 722 |  |  |  | 9,080 |
Consumer |  |  | 833 |  |  | — |  |  |  | 6 |  |  |  | 6 |  |  |  | 6 |  |  |  | 9 |
Home equity lines of credit |  |  | 413 |  |  | — |  |  |  | 413 |  |  |  | 413 |  |  |  | 231 |  |  |  | 413 |
Residential real estate |  |  | 178 |  |  | — |  |  |  | 178 |  |  |  | 178 |  |  |  | 24 |  |  |  | 181 |
Construction and land |  | — |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |
Total |  | $ | 28,742 |  |  | $ | — |  |  | $ | 26,934 |  |  | $ | 26,934 |  |  | $ | 3,375 |  |  | $ | 32,242 |
|  | December 31, 2015 |
|  | Unpaid Contractual Principal Balance |  |  | Recorded Investment with No Allowance |  |  | Recorded Investment with Allowance |  |  | Total Recorded Investment |  |  | Related Allowance |  |  | Average Recorded Investment |
Consumer |  | $ | 944 |  |  | $ | — |  |  | $ | 15 |  |  | $ | 15 |  |  | $ | 15 |  |  | $ | 23 |
Residential real estate |  |  | 776 |  |  |  | 524 |  |  |  | 182 |  |  |  | 706 |  |  |  | 24 |  |  |  | 752 |
Home equity lines of credit |  |  | 342 |  |  |  | 19 |  |  |  | 323 |  |  |  | 342 |  |  |  | 149 |  |  |  | 342 |
Commercial real estate |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Commercial and industrial |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Construction and land |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 2,062 |  |  | $ | 543 |  |  | $ | 520 |  |  | $ | 1,063 |  |  | $ | 188 |  |  | $ | 1,117 |
Aging Of The Recorded Investment In Past Due Loans |
|  | December 31, 2016 |
|  | 30-89 Days Past Due |  |  | 90 or More Days Past Due |  |  | Total Past Due |  |  | Current Balance |  |  | Total |
Residential real estate |  | $ | 1,923 |  |  | $ | — |  |  | $ | 1,923 |  |  | $ | 2,159,477 |  |  |  | 2,161,400 |
Commercial and industrial |  | — |  |  | — |  |  |  | — |  |  |  | 1,710,399 |  |  |  | 1,710,399 |
Securities-based loans |  | — |  |  | — |  |  |  | — |  |  |  | 1,614,033 |  |  |  | 1,614,033 |
Commercial real estate |  |  | 9,522 |  |  | — |  |  |  | 9,522 |  |  |  | 69,189 |  |  |  | 78,711 |
Consumer |  | — |  |  |  | 2 |  |  |  | 2 |  |  |  | 45,389 |  |  |  | 45,391 |
Home equity lines of credit |  |  | 78 |  |  |  | 196 |  |  |  | 274 |  |  |  | 14,734 |  |  |  | 15,008 |
Construction and land |  | — |  |  | — |  |  |  | — |  |  |  | 12,623 |  |  |  | 12,623 |
Total |  | $ | 11,523 |  |  | $ | 198 |  |  | $ | 11,721 |  |  | $ | 5,625,844 |  |  | $ | 5,637,565 |
|  | December 31, 2016 * |
|  | Non-accrual |  |  | Restructured (1) |  |  | Total |
Commercial and industrial |  | $ | 16,815 |  |  | $ | — |  |  | $ | 16,815 |
Commercial real estate |  |  | — |  |  |  | 9,522 |  |  |  | 9,522 |
Home equity lines of credit |  |  | 413 |  |  |  | — |  |  |  | 413 |
Residential real estate |  |  | — |  |  |  | 178 |  |  |  | 178 |
Consumer |  |  | 6 |  |  |  | — |  |  |  | 6 |
Construction and land |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 17,234 |  |  | $ | 9,700 |  |  | $ | 26,934 |
(1) On non-accrual status. * There were no loans past due 90 days and still accruing interest at December 31, 2016.
|  | December 31, 2015 |
|  | 30 – 89 Days Past Due |  |  | 90 or More Days Past Due |  |  | Total Past Due |  |  | Current Balance |  |  | Total |
Securities-based loans |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,388,953 |  |  |  | 1,388,953 |
Commercial and industrial |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,216,656 |  |  |  | 1,216,656 |
Residential real estate |  |  | 3,310 |  |  |  | 450 |  |  |  | 3,760 |  |  |  | 425,372 |  |  |  | 429,132 |
Commercial real estate |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 92,623 |  |  |  | 92,623 |
Consumer |  |  | 7 |  |  |  | 7 |  |  |  | 14 |  |  |  | 36,832 |  |  |  | 36,846 |
Home equity lines of credit |  |  | 323 |  |  |  | 19 |  |  |  | 342 |  |  |  | 12,133 |  |  |  | 12,475 |
Construction and land |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3,899 |  |  |  | 3,899 |
Total |  | $ | 3,640 |  |  | $ | 476 |  |  | $ | 4,116 |  |  | $ | 3,176,468 |  |  | $ | 3,180,584 |
|  | December 31, 2015 * |
|  | Non-accrual |  |  | Restructured |  |  | Total |
Commercial and industrial |  | $ | — |  |  | $ | — |  |  | $ | — |
Consumer |  |  | 15 |  |  |  | — |  |  |  | 15 |
Residential real estate |  |  | 380 |  |  |  | 326 |  |  |  | 706 |
Commercial real estate |  |  | — |  |  |  | — |  |  |  | — |
Home equity lines of credit |  |  | 342 |  |  |  | — |  |  |  | 342 |
Construction and land |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 737 |  |  | $ | 326 |  |  | $ | 1,063 |
* There were no loans past due 90 days and still accruing interest at December 31, 2015.
Risk Category Of Loan Portfolio |
|  | December 31, 2016 |
|  | Pass |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
Residential real estate |  | $ | 2,161,223 |  |  | $ | — |  |  | $ | 177 |  |  | $ | — |  |  | $ | 2,161,400 |
Commercial and industrial |  |  | 1,652,211 |  |  |  | 27,905 |  |  |  | 30,283 |  |  | — |  |  |  | 1,710,399 |
Securities-based loans |  |  | 1,614,033 |  |  | — |  |  | — |  |  | — |  |  |  | 1,614,033 |
Commercial real estate |  |  | 69,189 |  |  | — |  |  |  | 9,522 |  |  | — |  |  |  | 78,711 |
Consumer |  |  | 45,385 |  |  | — |  |  |  | 6 |  |  | — |  |  |  | 45,391 |
Home equity lines of credit |  |  | 14,595 |  |  | — |  |  |  | 413 |  |  | — |  |  |  | 15,008 |
Construction and land |  |  | 12,623 |  |  | — |  |  | — |  |  | — |  |  |  | 12,623 |
Total |  | $ | 5,569,259 |  |  | $ | 27,905 |  |  | $ | 40,401 |  |  | $ | — |  |  | $ | 5,637,565 |
|  | December 31, 2015 |
|  | Pass |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
Securities-based loans |  | $ | 1,388,939 |  |  | $ | — |  |  | $ | 14 |  |  | $ | — |  |  |  | 1,388,953 |
Commercial and industrial |  |  | 1,191,030 |  |  |  | 11,320 |  |  |  | 14,306 |  |  | — |  |  |  | 1,216,656 |
Residential real estate |  |  | 427,950 |  |  |  | 1,182 |  |  | — |  |  | — |  |  |  | 429,132 |
Commercial real estate |  |  | 92,623 |  |  | — |  |  | — |  |  | — |  |  |  | 92,623 |
Consumer |  |  | 36,846 |  |  | — |  |  | — |  |  | — |  |  |  | 36,846 |
Home equity lines of credit |  |  | 12,456 |  |  | — |  |  |  | 19 |  |  | — |  |  |  | 12,475 |
Construction and land |  |  | 3,899 |  |  | — |  |  | — |  |  | — |  |  |  | 3,899 |
Total |  | $ | 3,153,743 |  |  | $ | 12,502 |  |  | $ | 14,339 |  |  | $ | — |  |  | $ | 3,180,584 |

X
- Definition Loans and amount of allowance allocated based upon impairment method by portfolio segment. + References No definition available. + Details
Name: | sf_LoansAndAmountOfAllowanceAllocatedBasedUponImpairmentMethodByPortfolioSegmentTableTextBlock
Namespace Prefix: | sf_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 55 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=32702940&loc=SL6953803-111525 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of impaired financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables that are past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration