XML 57 R46.htm IDEA: XBRL DOCUMENT
v3.25.1

Derivative Financial Instruments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Derivative Financial Instruments |
Schedule of derivative financial instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | March 31, 2025 | ​ | ​ | ​ | ​ | December 31, 2024
​ | ​ | Balance Sheet | ​ | Notional | ​ | Estimated Fair Value | ​ | Notional | ​ | Estimated Fair Value
(Dollars in thousands) |  | Location |  | Amount |  | Gain |  | Loss |  | Amount |  | Gain |  | Loss
Fair value hedge of interest rate risk: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pay fixed rate swap with counterparty | ​ | Other Assets | ​ | $ | 3,898 | ​ | $ | 79 | ​ | $ | — | ​ | $ | 3,945 | ​ | $ | 107 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Not designated hedges of interest rate risk: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer related interest rate contracts: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Matched interest rate swaps with borrowers | ​ | Other Assets and Other Liabilities | ​ | ​ | 12,986,187 | ​ | ​ | 90,936 | ​ | ​ | 698,392 | ​ | ​ | 12,649,905 | ​ | ​ | 36,232 | ​ | ​ | 878,046
Matched interest rate swaps with counterparty (1) | ​ | Other Assets | ​ | ​ | 12,880,321 | ​ | ​ | 84,154 | ​ | ​ | — | ​ | ​ | 12,559,707 | ​ | ​ | 124,032 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Economic hedges of interest rate risk: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Pay floating rate swap with counterparty | ​ | Other Assets | ​ | ​ | 3,586,000 | ​ | ​ | (14) | ​ | ​ | — | ​ | ​ | 3,083,000 | ​ | ​ | 36 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Not designated hedges of interest rate risk – mortgage banking activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Contracts used to hedge mortgage servicing rights | ​ | Other Assets and Other Liabilities | ​ | ​ | 157,000 | ​ | ​ | 129 | ​ | ​ | — | ​ | ​ | 129,000 | ​ | ​ | — | ​ | ​ | 1,809
Contracts used to hedge mortgage pipeline | ​ | Other Assets and Other Liabilities | ​ | ​ | 135,000 | ​ | ​ | 1,978 | ​ | ​ | 541 | ​ | ​ | 88,000 | ​ | ​ | 1,083 | ​ | ​ | —
Total derivatives | ​ | ​ | ​ | $ | 29,748,406 | ​ | $ | 177,262 | ​ | $ | 698,933 | ​ | $ | 28,513,557 | ​ | $ | 161,490 | ​ | $ | 879,855
Schedule of derivative, offsetting assets and liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | March 31, 2025 | ​ | ​ | ​ | ​ | December 31, 2024 | ​
​ | ​ | Notional | ​ | Estimated Fair Value | ​ | Notional | ​ | Estimated Fair Value | ​
(Dollars in thousands) |  | Amount |  | Gain |  | Loss |  | Amount |  | Gain |  | Loss | ​
Interest rate contracts subject to master netting agreements included in table above | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total gross derivative instruments, before netting | ​ | $ | 1,899,249 | ​ | $ | 100,639 | ​ | $ | 3,094 | ​ | $ | 1,858,693 | ​ | $ | 133,304 | ​ | $ | 708 | ​
Less: Netting adjustment | ​ | ​ | 172,329 | ​ | ​ | (3,094) | ​ | ​ | (3,094) | ​ | ​ | 49,000 | ​ | ​ | (708) | ​ | ​ | (708) | ​
Total gross derivative instruments, after netting | ​ | ​ | 1,899,249 | ​ | $ | 97,545 | ​ | $ | — | ​ | ​ | 1,858,693 | ​ | $ | 132,596 | ​ | $ | — | ​
| * | As of March 31, 2025 and December 31, 2024, counterparties provided $43.9 million and $53.9 million, respectively, of cash collateral to the Company to secure swap asset positions that were not centrally cleared, which is included in Interest-bearing Deposits within Total Liabilities on the Consolidated Balance Sheets. Counterparties also pledged $30.0 million and $30.4 million in investment securities to secure swap asset positions that were not centrally cleared. The Company provided $1.9 million to counterparties to secure swap positions that were not centrally cleared as of March 31, 2025 and December 31, 2024.
Schedule of notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) |  | March 31, 2025 |  | December 31, 2024 |
Mortgage loan pipeline | ​ | $ | 112,826 | ​ | $ | 59,291 | ​
Expected closures | ​ |  | 97,758 | ​ |  | 53,177 | ​
Fair value of mortgage loan pipeline commitments | ​ |  | 1,978 | ​ |  | 751 | ​
Forward sales commitments | ​ |  | 135,000 | ​ |  | 88,000 | ​
Fair value of forward commitments | ​ |  | (541) | ​ |  | 333 | ​
​

X
- Definition Tabular disclosure of derivative assets and liabilities that are subject to offsetting, including master netting arrangements. + References No definition available. + Details
Name: | ssb_DerivativeOffsettingAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | ssb_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of fair value derivative and obligation and fair value of associated derivative instruments. + References No definition available. + Details
Name: | ssb_ScheduleOfDerivativeFairValueAndObligationAndFairValueOfAssociatedDerivativeInstrumentsTableTextBlock
Namespace Prefix: | ssb_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration