XML 59 R48.htm IDEA: XBRL DOCUMENT
v3.21.2

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Loan Servicing, Mortgage Origination, and Loans Held for Sale |
Summary of changes in the fair value of MSRs and its offsetting hedge | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended |  | Six Months Ended | ​ |
(Dollars in thousands) |  | June 30, 2021 |  | June 30, 2020 |  | June 30, 2021 |  | June 30, 2020 |  | ​
Increase (decrease) in fair value of MSRs | ​ | $ | (2,192) | ​ | $ | (5,179) | ​ | $ | 5,883 | ​ | $ | (10,098) | ​ | ​
Decay of MSRs | ​ |  | (3,288) | ​ |  | (1,994) | ​ |  | (7,849) | ​ |  | (3,198) | ​ | ​
Loss related to derivatives | ​ | ​ | 2,802 | ​ | ​ | 689 | ​ | ​ | (3,601) | ​ | ​ | 10,296 | ​ | ​
Net effect on statements of income | ​ | $ | (2,678) | ​ | $ | (6,484) | ​ | $ | (5,567) | ​ | $ | (3,000) | ​ | ​
Schedule of characteristics and sensitivity analysis of the MSR | The characteristics and sensitivity analysis of the MSRs are included in the following table.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | ​ | December 31, | ​ | ​
(Dollars in thousands) |  | 2021 |  |  | 2020 |  |
Composition of residential loans serviced for others | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fixed-rate mortgage loans | ​ | ​ | 99.9 | % | ​ | ​ | 99.9 | % | ​
Adjustable-rate mortgage loans | ​ | ​ | 0.1 | % | ​ | ​ | 0.1 | % | ​
Total | ​ | ​ | 100.0 | % | ​ | ​ | 100.0 | % | ​
Weighted average life | ​ | ​ | 6.95 | years | ​ | ​ | 6.10 | years | ​
Constant Prepayment rate (CPR) | ​ | ​ | 9.4 | % | ​ | ​ | 12.3 | % | ​
Weighted average discount rate | ​ | ​ | 9.0 | % | ​ | ​ | 9.0 | % | ​
Effect on fair value due to change in interest rates | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
25 basis point increase | ​ | $ | 3,798 | ​ | ​ | $ | 2,744 | ​ | ​
50 basis point increase | ​ | ​ | 7,363 | ​ | ​ | ​ | 5,520 | ​ | ​
25 basis point decrease | ​ | ​ | (4,141) | ​ | ​ | ​ | (2,497) | ​ | ​
50 basis point decrease | ​ | ​ | (8,096) | ​ | ​ | ​ | (4,114) | ​ | ​

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

X
- Definition Tabular disclosure of changes in the fair value of Mortgage Servicing Rights (MSRs) and its offsetting hedge. + References No definition available. + Details
Name: | ssb_ScheduleOfChangesInFairValueOfMortgageServicingRightsAndOffsettingHedgeTableTextBlock
Namespace Prefix: | ssb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure related to composition of residential mortgages serviced for others, characteristics and sensitivity analysis of the mortgage servicing rights. + References No definition available. + Details
Name: | ssb_ScheduleOfCompositionOfResidentialMortgagesServicedForOthersAndCharacteristicsAndSensitivityAnalysisOfMortgageServicingRightsTableTextBlock
Namespace Prefix: | ssb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration