Percentage rate based on collateral discounts and estimated costs to sell.

No definition available.

Name:	ssb_FairValueInputsDiscountRateAndEstimatedCostsToSell
Namespace Prefix:	ssb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_FairValueInputsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_OtherRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=ssb_OtherRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=ssb_NonAcquiredImpairedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=ssb_ImpairedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis - (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Apr. 01, 2015	Dec. 31, 2013	Dec. 31, 2012
Fair Value
Other Real Estate	$ 30,554	$ 42,726	$ 2,200	$ 64,918	$ 66,505
Significant Unobservable Inputs (Level 3) \| OREO
Fair Value
Other Real Estate		42,726
Significant Unobservable Inputs (Level 3) \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate		$ 12,612
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| OREO
Fair Value
Other Real Estate	30,554
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	$ 13,355
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Discounted appraisals \| Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	6.00%	6.00%
Nonrecurring basis \| Significant Unobservable Inputs (Level 3) \| Discounted appraisals \| OREO
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	16.00%	22.00%
Fair Value. \| OREO
Fair Value
Other Real Estate		$ 42,726
Fair Value. \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate		$ 12,612
Fair Value. \| Nonrecurring basis \| OREO
Fair Value
Other Real Estate	$ 30,554
Fair Value. \| Nonrecurring basis \| Non-acquired Credit Impaired loans
Fair Value
Other Real Estate	$ 13,355